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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D. C. 20549



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Form 10-Q



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QUARTERLY REPORT PURSUANT TO SECTION
13 OR 15 (d)

OF THE SECURITIES EXCHANGE ACT OF 1934



For the quarterly period ended September 30, 2005



Commission file number 1-14643



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LOGO



STERIS Corporation

(Exact name of registrant as specified in its charter)



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|                                                               |  |                                  
|-------------------------------------------------------------- |  | ---------------------------------
|Ohio                                                           |  | 34-1482024                       
|(State or other jurisdiction of incorporation or organization) |  | (IRS Employer Identification No.)
|                                                               | 
|5960 Heisley Road, Mentor, Ohio                                |  | 44060-1834                       
|(Address of principal executive offices)                       |  | (Zip code)                       



440-354-2600

(Registrants telephone number, including area code)



---



Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15 (d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No ̈



Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act).    Yes  x    No ̈



Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).    Yes ̈No  x



The number of common shares outstanding as of October 31, 2005:
68,362,889



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##### Table of Contents

STERIS Corporation



Form 10-Q

Index



|                               |  |         |  |                                                                                       |  |     
|------------------------------ |  | ------- |  | ------------------------------------------------------------------------------------- |  | ----
|                               |  |         |  |                                                                                       |  | Page
|Part I - Financial Information |  |        
|                               |  |         | 
|                               |  | Item 1. |  | Financial Statements                                                                  |  | 3   
|                               |  |         | 
|                               |  | Item 2. |  | Managements Discussion and Analysis of Financial Condition and Results of Operations |  | 18  
|                               |  |         | 
|                               |  | Item 3. |  | Quantitative and Qualitative Disclosures About Market Risk                            |  | 32  
|                               |  |         | 
|                               |  | Item 4. |  | Controls and Procedures                                                               |  | 32  
|                               | 
|Part II - Other Information    |  |        
|                               |  |         | 
|                               |  | Item 1. |  | Legal Proceedings                                                                     |  | 33  
|                               |  |         | 
|                               |  | Item 2. |  | Unregistered Sales of Equity Securities and Use of Proceeds                           |  | 33  
|                               |  |         | 
|                               |  | Item 4. |  | Submission of Matters to a Vote of Security Holders                                   |  | 33  
|                               |  |         | 
|                               |  | Item 6. |  | Exhibits                                                                              |  | 34  
|                               |  |         | 
|                               |  |         |  | Signature                                                                             |  | 35  



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##### Table of Contents

PART 1- FINANCIAL INFORMATION



ITEM 1. FINANCIAL STATEMENTS



STERIS CORPORATION



CONSOLIDATED BALANCE
SHEETS

(in thousands)



|                                                                                                                              |  |                    |           |   |               |   |           |  
|----------------------------------------------------------------------------------------------------------------------------- |  | ------------------ | --------- | - | ------------- | - | --------- | -
|                                                                                                                              |  | September 30, 2005 |           |   | March 31,2005 |  
|                                                                                                                              |  | (Unaudited)        |           |   |               |  
|Assets                                                                                                                        |  |                    |           |   |               |   |           |  
|                                                                                                                              |  |                   
|Current assets:                                                                                                               |  |                    |           |   |               |   |           |  
|Cash and cash equivalents                                                                                                     |  | $                  | 46,382    |   |               | $ | 26,179    |  
|Accounts receivable (net of allowances of $8,131 and $9,882, respectively)                                                    |  |                    | 228,141   |   |               |   | 281,401   |  
|Inventories, net                                                                                                              |  |                    | 114,721   |   |               |   | 96,197    |  
|Current portion of deferred income taxes, net                                                                                 |  |                    | 6,739     |   |               |   | 6,426     |  
|Prepaid expenses and other current assets                                                                                     |  |                    | 12,705    |   |               |   | 9,929     |  
|                                                                                                                              |  |                    |           |   |               |   |           |  
|Total current assets                                                                                                          |  |                    | 408,688   |   |               |   | 420,132   |  
|                                                                                                                              |  |                   
|Property, plant, and equipment, net                                                                                           |  |                    | 408,285   |   |               |   | 413,578   |  
|Goodwill and intangibles, net                                                                                                 |  |                    | 337,940   |   |               |   | 350,156   |  
|Other assets                                                                                                                  |  |                    | 1,853     |   |               |   | 1,856     |  
|                                                                                                                              |  |                    |           |   |               |   |           |  
|Total assets                                                                                                                  |  | $                  | 1,156,766 |   |               | $ | 1,185,722 |  
|                                                                                                                              |  |                    |           |   |               |   |           |  
|Liabilities and shareholders equity                                                                                          |  |                    |           |   |               |   |           |  
|Current liabilities:                                                                                                          |  |                    |           |   |               |   |           |  
|Current portion of long-term indebtedness                                                                                     |  | $                  | 3,053     |   |               | $ | 4,889     |  
|Accounts payable                                                                                                              |  |                    | 62,432    |   |               |   | 67,550    |  
|Accrued income taxes                                                                                                          |  |                    | 14,493    |   |               |   | 13,474    |  
|Accrued payroll and other related liabilities                                                                                 |  |                    | 34,824    |   |               |   | 41,716    |  
|Accrued expenses and other                                                                                                    |  |                    | 90,082    |   |               |   | 94,186    |  
|                                                                                                                              |  |                    |           |   |               |   |           |  
|Total current liabilities                                                                                                     |  |                    | 204,884   |   |               |   | 221,815   |  
|                                                                                                                              |  |                   
|Long-term indebtedness                                                                                                        |  |                    | 105,668   |   |               |   | 104,274   |  
|Deferred income taxes, net                                                                                                    |  |                    | 38,543    |   |               |   | 38,862    |  
|Other liabilities                                                                                                             |  |                    | 66,283    |   |               |   | 65,133    |  
|                                                                                                                              |  |                    |           |   |               |   |           |  
|Total liabilities                                                                                                             |  |                    | 415,378   |   |               |   | 430,084   |  
|                                                                                                                              |  |                   
|Serial preferred shares, without par value; 3,000 shares authorized; no shares issued or outstanding                          |  |                    |          |   |               |   |          |  
|Common shares, without par value; 300,000 shares authorized; issued and outstanding shares of 68,363 and 69,627, respectively |  |                    | 179,427   |   |               |   | 211,657   |  
|Retained earnings                                                                                                             |  |                    | 565,779   |   |               |   | 537,526   |  
|Accumulated other comprehensive (loss) income:                                                                                |  |                    |           |   |               |   |           |  
|Minimum pension liability                                                                                                     |  |                    | (5,974    | ) |               |   | (5,974    | )
|Cumulative foreign currency translation adjustment                                                                            |  |                    | 2,156     |   |               |   | 12,429    |  
|                                                                                                                              |  |                    |           |   |               |   |           |  
|Total shareholders equity                                                                                                    |  |                    | 741,388   |   |               |   | 755,638   |  
|                                                                                                                              |  |                    |           |   |               |   |           |  
|Total liabilities and shareholders equity                                                                                    |  | $                  | 1,156,766 |   |               | $ | 1,185,722 |  
|                                                                                                                              |  |                    |           |   |               |   |           |  



See notes to
consolidated financial statements.



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STERIS CORPORATION



CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share amounts)

(Unaudited)



|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|---------------------------------------------------- |  | ------------------------------- | ------- | ----------------------------- | - | ------- |  | ---- | ------- |  | - | -------
|                                                     |  | Three Months EndedSeptember 30, |         | Six Months EndedSeptember 30,
|                                                     |  | 2005                            |         | 2004                          |   | 2005    |  | 2004
|Revenues:                                            |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Product                                              |  | $                               | 184,677 |                               | $ | 176,612 |  | $    | 361,597 |  | $ | 345,037
|Service                                              |  |                                 | 99,693  |                               |   | 88,234  |  |      | 199,471 |  |   | 174,606
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Total revenues                                       |  |                                 | 284,370 |                               |   | 264,846 |  |      | 561,068 |  |   | 519,643
|                                                     |  |                                 |         |                              
|Cost of revenues:                                    |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Product                                              |  |                                 | 109,994 |                               |   | 102,588 |  |      | 211,632 |  |   | 197,782
|Service                                              |  |                                 | 58,143  |                               |   | 50,770  |  |      | 115,432 |  |   | 100,481
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Total cost of revenues                               |  |                                 | 168,137 |                               |   | 153,358 |  |      | 327,064 |  |   | 298,263
|Gross profit                                         |  |                                 | 116,233 |                               |   | 111,488 |  |      | 234,004 |  |   | 221,380
|                                                     |  |                                 |         |                              
|Operating expenses:                                  |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Selling, general, and administrative                 |  |                                 | 79,165  |                               |   | 71,944  |  |      | 160,958 |  |   | 144,510
|Research and development                             |  |                                 | 10,022  |                               |   | 8,677   |  |      | 18,751  |  |   | 17,988 
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Total operating expenses                             |  |                                 | 89,187  |                               |   | 80,621  |  |      | 179,709 |  |   | 162,498
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Income from operations                               |  |                                 | 27,046  |                               |   | 30,867  |  |      | 54,295  |  |   | 58,882 
|Non-operating expense, net                           |  |                                 | 937     |                               |   | 685     |  |      | 231     |  |   | 1,386  
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Income before income tax expense                     |  |                                 | 26,109  |                               |   | 30,182  |  |      | 54,064  |  |   | 57,496 
|Income tax expense                                   |  |                                 | 9,694   |                               |   | 11,289  |  |      | 20,317  |  |   | 20,986 
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Net income                                           |  | $                               | 16,415  |                               | $ | 18,893  |  | $    | 33,747  |  | $ | 36,510 
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Net income per common share:                         |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Basic                                                |  | $                               | 0.24    |                               | $ | 0.27    |  | $    | 0.49    |  | $ | 0.53   
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Diluted                                              |  | $                               | 0.24    |                               | $ | 0.27    |  | $    | 0.48    |  | $ | 0.52   
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Cash dividends declared per common share outstanding |  | $                               | 0.04    |                               | $ |        |  | $    | 0.08    |  | $ |       
|                                                     |  |                                 |         |                               |   |         |  |      |         |  |   |        



See notes to
consolidated financial statements.



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STERIS CORPORATION



CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(Unaudited)



|                                                                                             |  |                               |         |   |      |   |         |  
|-------------------------------------------------------------------------------------------- |  | ----------------------------- | ------- | - | ---- | - | ------- | -
|                                                                                             |  | Six Months EndedSeptember 30, |        
|                                                                                             |  | 2005                          |         |   | 2004 |  
|Operating activities:                                                                        |  |                               |         |   |      |   |         |  
|Net income                                                                                   |  | $                             | 33,747  |   |      | $ | 36,510  |  
|Adjustments to reconcile net income to net cash provided by operating activities:            |  |                               |         |   |      |   |         |  
|Depreciation, depletion, and amortization                                                    |  |                               | 28,432  |   |      |   | 24,322  |  
|Deferred income taxes                                                                        |  |                               | (153    | ) |      |   | 4,213   |  
|Other items                                                                                  |  |                               | 724     |   |      |   | 5,214   |  
|Changes in operating assets and liabilities, excluding the effects of business acquisitions: |  |                               |         |   |      |   |         |  
|Accounts receivable, net                                                                     |  |                               | 53,096  |   |      |   | (6,044  | )
|Inventories, net                                                                             |  |                               | (16,875 | ) |      |   | (3,241  | )
|Other current assets                                                                         |  |                               | (2,315  | ) |      |   | (1,542  | )
|Accounts payable                                                                             |  |                               | (8,004  | ) |      |   | (8,028  | )
|Accruals and other, net                                                                      |  |                               | (4,333  | ) |      |   | 9,972   |  
|                                                                                             |  |                               |         |   |      |   |         |  
|Net cash provided by operating activities                                                    |  |                               | 84,319  |   |      |   | 61,376  |  
|                                                                                             |  |                              
|Investing activities:                                                                        |  |                               |         |   |      |   |         |  
|Purchases of property, plant, equipment, and intangibles, net                                |  |                               | (22,737 | ) |      |   | (25,535 | )
|Investments in businesses, net of cash acquired                                              |  |                               | (1,504  | ) |      |   | (52,923 | )
|                                                                                             |  |                               |         |   |      |   |         |  
|Net cash used in investing activities                                                        |  |                               | (24,241 | ) |      |   | (78,458 | )
|                                                                                             |  |                              
|Financing activities:                                                                        |  |                               |         |   |      |   |         |  
|Proceeds (payments) under credit facilities, net                                             |  |                               | 1,700   |   |      |   | (2,158  | )
|Payments on long-term obligations and capital leases, net                                    |  |                               | (1,932  | ) |      |   | (2,104  | )
|Repurchases of common shares                                                                 |  |                               | (39,394 | ) |      |   | (33,868 | )
|Cash dividends paid to common shareholders                                                   |  |                               | (5,494  | ) |      |   |        |  
|Deferred financing fees                                                                      |  |                               | (217    | ) |      |   |        |  
|Stock option and other equity transactions, net                                              |  |                               | 5,992   |   |      |   | 7,589   |  
|                                                                                             |  |                               |         |   |      |   |         |  
|Net cash used in financing activities                                                        |  |                               | (39,345 | ) |      |   | (30,541 | )
|                                                                                             |  |                              
|Effect of exchange rate changes on cash and cash equivalents                                 |  |                               | (530    | ) |      |   |        |  
|                                                                                             |  |                               |         |   |      |   |         |  
|Increase (decrease) in cash and cash equivalents                                             |  |                               | 20,203  |   |      |   | (47,623 | )
|Cash and cash equivalents at beginning of period                                             |  |                               | 26,179  |   |      |   | 80,408  |  
|                                                                                             |  |                               |         |   |      |   |         |  
|Cash and cash equivalents at end of period                                                   |  | $                             | 46,382  |   |      | $ | 32,785  |  
|                                                                                             |  |                               |         |   |      |   |         |  



See notes to
consolidated financial statements.



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STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

(dollars in thousands, except per share amounts)



1. Nature of Operations and Summary of Significant Accounting Policies



Throughout this document, references to STERIS Corporation, STERIS, or the Company, are references to STERIS
Corporation and its subsidiaries, except where a different meaning is clearly required by the context. The Companys fiscal year ends on March 31. References to a particular year or year-end refer to the Companys
fiscal year.



Nature of Operations



The Company develops, manufactures, and markets a combination of equipment,
consumables, and services for healthcare, pharmaceutical, scientific, research, industrial, and governmental customers throughout the world. The Company operates in three business segments: Healthcare, Life Sciences, and STERIS Isomedix Services.



Interim Financial Statements



The accompanying unaudited consolidated financial statements of the Company
have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and
footnotes required by U.S. generally accepted accounting principles for complete financial statements. In the opinion of management, the accompanying unaudited consolidated financial statements contain all material adjustments (including normal
recurring accruals and adjustments) necessary to present fairly the financial condition, results of operations, and cash flows of the Company for the periods presented.



These interim consolidated financial statements should be read in conjunction with the consolidated financial statements and
related notes included in the Companys Annual Report on Form 10-K for the year ended March 31, 2005, filed with the Securities and Exchange Commission on June 14, 2005. The Consolidated Balance Sheet at March 31, 2005 has been derived from the
audited consolidated financial statements at that date, but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.



Principles of Consolidation



The consolidated financial statements include the accounts of the Company
and its wholly-owned subsidiaries. Significant inter-company accounts and transactions have been eliminated upon consolidation.



Use of Estimates



The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and
assumptions in certain circumstances that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from
these estimates and, therefore, operating results for the three and six month periods ended September 30, 2005 are not necessarily indicative of results that may be expected for the full fiscal year ending March 31, 2006.



Reclassifications



Certain prior period amounts have been reclassified to conform to the
current periods presentation. Further information regarding reclassifications of segment revenues and segment operating results is included in Note 11, Business Segment Information.



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STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



Significant Accounting Policies



A detailed description of the Companys significant and critical accounting policies, estimates, and assumptions is
included in the Companys Annual Report on Form 10-K for the year ended March 31, 2005, filed with the Securities and Exchange Commission on June 14, 2005. The Companys significant and critical accounting policies, estimates, and
assumptions have not changed materially from March 31, 2005.



Stock-based
Compensation



The Company has granted nonqualified
stock options to certain employees to purchase the Companys common shares at the market price on the date of grant. Stock options granted generally become exercisable to the extent of one-fourth of the optioned shares for each full year of
employment following the date of grant and generally expire 10 years after the date of grant, or earlier if an option holder ceases to be employed by the Company. Certain option agreements have provisions that provide for an adjustment to the normal
vesting schedule whereby options vest on a prorated basis as defined by specific option agreements in the event of employment termination. The Company accounts for share-based compensation under the provisions of Accounting Principles Board Opinion
No. 25 (APB No. 25), Accounting for Stock Issued to Employees, as permitted by Statement of Financial Accounting Standards No. 123 (SFAS No. 123), Accounting for Stock-Based Compensation, as amended by
Statement of Financial Accounting Standards No. 148, Accounting for Stock-Based CompensationTransition and Disclosure, and accordingly recognizes no compensation expense when the exercise price equals the market price of the stock
on the date of grant.



In December 2004, the Financial
Accounting Standards Board issued Statement of Financial Accounting Standards No. 123R (SFAS No. 123R), Share-Based Payment, which is a revision of SFAS No. 123. This revised standard supersedes APB No. 25 and amends
Statement of Financial Accounting Standards No. 95, Statement of Cash Flows. This revised standard addresses the accounting for share-based payment transactions in which a company receives employee services in exchange for either equity
instruments of the company or liabilities that are based on the fair value of the companys equity instruments. Under the revised standard, companies will no longer be able to account for such transactions using the intrinsic value method in
accordance with APB No. 25. Instead, companies will be required to account for such transactions using a fair value method and recognize expense in the consolidated statements of income. In addition, the revised standard requires that the benefits
of tax deductions in excess of recognized compensation cost be reported as a financing cash flow, rather than as an operating cash flow as required under current accounting guidance. This requirement will reduce net operating cash flows and will
increase net financing cash flows in periods after adoption. The Company cannot estimate what these amounts will be in the future because they depend on, among other things, when employees exercise stock options. However, the amount of operating
cash flows recognized in prior periods for these excess tax deductions has historically not been material. SFAS No. 123R is effective for annual reporting periods beginning after June 15, 2005. The Company will adopt SFAS No. 123R on April 1, 2006.
The Company has not yet determined which fair value model and transitional provision it will follow.



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STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



The following table contains pro forma disclosures regarding the effect on the Companys net
income, earnings per basic common share, and earnings per diluted common share had the Company applied a fair value method of accounting for share-based compensation in accordance with SFAS No. 123. Depending on the model used to calculate
share-based compensation expense in the future and other requirements of SFAS No. 123R, the pro forma disclosures currently used by the Company may not be indicative of the share-based compensation expense that will be recognized in the
Companys future financial statements. Further, the structure and timing of future grants may also have differing impacts on future results.



|                                                                                            |  |                                 |        |                               |   |        |  |      |        |  |   |       
|------------------------------------------------------------------------------------------- |  | ------------------------------- | ------ | ----------------------------- | - | ------ |  | ---- | ------ |  | - | ------
|                                                                                            |  | Three Months EndedSeptember 30, |        | Six Months EndedSeptember 30,
|                                                                                            |  | 2005                            |        | 2004                          |   | 2005   |  | 2004
|Net income:                                                                                 |  |                                 |        |                               |   |        |  |      |        |  |   |       
|As reported                                                                                 |  | $                               | 16,415 |                               | $ | 18,893 |  | $    | 33,747 |  | $ | 36,510
|Less: Stock-based compensation expense, net of income taxes, assuming the fair value method |  |                                 | 1,398  |                               |   | 1,270  |  |      | 2,874  |  |   | 2,727 
|                                                                                            |  |                                 |        |                               |   |        |  |      |        |  |   |       
|Pro forma                                                                                   |  | $                               | 15,017 |                               | $ | 17,623 |  | $    | 30,873 |  | $ | 33,783
|                                                                                            |  |                                 |        |                               |   |        |  |      |        |  |   |       
|Earnings per common share:                                                                  |  |                                 |        |                               |   |        |  |      |        |  |   |       
|Basic:                                                                                      |  |                                 |        |                               |   |        |  |      |        |  |   |       
|As reported                                                                                 |  | $                               | 0.24   |                               | $ | 0.27   |  | $    | 0.49   |  | $ | 0.53  
|Pro forma                                                                                   |  |                                 | 0.22   |                               |   | 0.25   |  |      | 0.45   |  |   | 0.49  
|Diluted:                                                                                    |  |                                 |        |                               |   |        |  |      |        |  |   |       
|As reported                                                                                 |  |                                 | 0.24   |                               |   | 0.27   |  |      | 0.48   |  |   | 0.52  
|Pro forma                                                                                   |  |                                 | 0.22   |                               |   | 0.25   |  |      | 0.44   |  |   | 0.48  



For the purpose of
computing pro forma net income, the fair value of option grants was estimated at their grant date using the Black-Scholes option pricing model. This model was developed for use in estimating the fair value of traded options that have no vesting
restrictions and are fully transferable, characteristics that are not present in the Companys option grants. If the model permitted consideration of the unique characteristics of employee stock options, the resulting estimate of the fair value
of the stock options could be different.



2. Common Shares



Basic earnings per common share is calculated based upon the weighted
average number of common shares outstanding. Diluted earnings per common share is calculated based upon the weighted average number of common shares outstanding plus the dilutive effect of common share equivalents calculated using the treasury stock
method. The following is a summary of common shares and common share equivalents outstanding used in the calculations of basic and diluted earnings per common share:



|                                                                                  |  |                                  |  |                               |  |        |  |       
|--------------------------------------------------------------------------------- |  | -------------------------------- |  | ----------------------------- |  | ------ |  | ------
|                                                                                  |  | Three Months Ended September 30, |  | Six Months EndedSeptember 30,
|                                                                                  |  | 2005                             |  | 2004                          |  | 2005   |  | 2004  
|                                                                                  |  | (shares in thousands)           
|Weighted average common shares outstanding - basic                                |  | 68,196                           |  | 69,010                        |  | 68,661 |  | 69,243
|Dilutive effect of common share equivalents                                       |  | 783                              |  | 734                           |  | 771    |  | 850   
|                                                                                  |  |                                  |  |                               |  |        |  |       
|Weighted average common shares outstanding and common share equivalents - diluted |  | 68,979                           |  | 69,744                        |  | 69,432 |  | 70,093
|                                                                                  |  |                                  |  |                               |  |        |  |       



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STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



Options to purchase the following number of common shares at the following weighted average exercise
prices were outstanding but excluded from the computation of diluted earnings per common share because the exercise prices were greater than the average market price for the common shares during the periods:



|                                |  |                                 |       |                               |   |       |  |      |       |  |   |      
|------------------------------- |  | ------------------------------- | ----- | ----------------------------- | - | ----- |  | ---- | ----- |  | - | -----
|                                |  | Three Months EndedSeptember 30, |       | Six Months EndedSeptember 30,
|                                |  | 2005                            |       | 2004                          |   | 2005  |  | 2004
|                                |  | (shares in thousands)          
|Number of common share options  |  |                                 | 1,495 |                               |   | 2,566 |  |      | 1,495 |  |   | 1,568
|Weighted average exercise price |  | $                               | 28.44 |                               | $ | 25.06 |  | $    | 28.44 |  | $ | 28.27



3. Comprehensive Income



Statement of Financial Accounting Standards No. 130,
Reporting Comprehensive Income, establishes standards for reporting comprehensive income. Comprehensive income includes net income as currently reported under U.S. generally accepted accounting principles and other comprehensive income.
Other comprehensive income considers the effects of additional economic events that are not required to be recorded in determining net income, but rather are reported as a separate component of shareholders equity. The following table
illustrates the components of the Companys comprehensive income:



|                                         |  |                                 |        |                               |      |   |        |  |   |         |   |  |   |       
|---------------------------------------- |  | ------------------------------- | ------ | ----------------------------- | ---- | - | ------ |  | - | ------- | - |  | - | ------
|                                         |  | Three Months EndedSeptember 30, |        | Six Months EndedSeptember 30,
|                                         |  | 2005                            |        |                               | 2004 |   | 2005   |  |   | 2004   
|Net income                               |  | $                               | 16,415 |                               |      | $ | 18,893 |  | $ | 33,747  |   |  | $ | 36,510
|Foreign currency translation adjustments |  |                                 | (420   | )                             |      |   | 7,194  |  |   | (10,273 | ) |  |   | 5,734 
|                                         |  |                                 |        |                               |      |   |        |  |   |         |   |  |   |       
|Total comprehensive income               |  | $                               | 15,995 |                               |      | $ | 26,087 |  | $ | 23,474  |   |  | $ | 42,244
|                                         |  |                                 |        |                               |      |   |        |  |   |         |   |  |   |       



4. Depreciable Assets



Information related to the major categories of the
Companys depreciable assets is as follows:



|                                             |  |                   |          |   |               |   |          |  
|-------------------------------------------- |  | ----------------- | -------- | - | ------------- | - | -------- | -
|                                             |  | September 30,2005 |          |   | March 31,2005 |  
|Land and land improvements (1)               |  | $                 | 23,901   |   |               | $ | 23,518   |  
|Buildings and leasehold improvements         |  |                   | 194,392  |   |               |   | 195,727  |  
|Machinery and equipment                      |  |                   | 255,493  |   |               |   | 242,009  |  
|Information systems                          |  |                   | 99,864   |   |               |   | 97,665   |  
|Radioisotope                                 |  |                   | 113,905  |   |               |   | 108,519  |  
|Construction in progress (1)                 |  |                   | 41,170   |   |               |   | 36,973   |  
|                                             |  |                   |          |   |               |   |          |  
|Total property, plant, and equipment         |  |                   | 728,725  |   |               |   | 704,411  |  
|Less: accumulated depreciation and depletion |  |                   | (320,440 | ) |               |   | (290,833 | )
|                                             |  |                   |          |   |               |   |          |  
|Property, plant, and equipment, net          |  | $                 | 408,285  |   |               | $ | 413,578  |  
|                                             |  |                   |          |   |               |   |          |  

---

|(1) | Land is not depreciated. Construction in progress is not depreciated until placed in service.
|--- | ---------------------------------------------------------------------------------------------



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STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



5. Inventories, Net



Inventories, net are stated at the lower of cost or market. The Company uses the last-in, first-out (LIFO) and first-in, first-out (FIFO) cost methods.
An actual valuation of inventory under the LIFO method is made only at the end of the fiscal year based on the inventory levels and costs at that time. Accordingly, interim LIFO calculations are based on managements estimates of expected
year-end inventory levels and are subject to the final fiscal year-end LIFO inventory valuation. Inventory costs include material, labor, and overhead. Inventories, net consisted of the following:



|                 |  |                   |         |               |   |       
|---------------- |  | ----------------- | ------- | ------------- | - | ------
|                 |  | September 30,2005 |         | March 31,2005
|Raw materials    |  | $                 | 31,020  |               | $ | 26,769
|Work in process  |  |                   | 26,580  |               |   | 23,533
|Finished goods   |  |                   | 57,121  |               |   | 45,895
|                 |  |                   |         |               |   |       
|Inventories, net |  | $                 | 114,721 |               | $ | 96,197
|                 |  |                   |         |               |   |       



6. Debt



Indebtedness was as follows:



|                      |  |                   |         |               |   |        
|--------------------- |  | ----------------- | ------- | ------------- | - | -------
|                      |  | September 30,2005 |         | March 31,2005
|Private Placement     |  | $                 | 100,000 |               | $ | 100,000
|Credit facility       |  |                   | 2,900   |               |   | 1,200  
|Other debt            |  |                   | 5,821   |               |   | 7,963  
|                      |  |                   |         |               |   |        
|Total                 |  |                   | 108,721 |               |   | 109,163
|Less: current portion |  |                   | 3,053   |               |   | 4,889  
|                      |  |                   |         |               |   |        
|Long-term portion     |  | $                 | 105,668 |               | $ | 104,274
|                      |  |                   |         |               |   |        



As of June 16, 2005,
the Company entered into Amendment No. 2 (Amendment No. 2) to the Amended and Restated Credit Agreement (the Credit Agreement) dated March 29, 2004 with KeyBank National Association, as administrative agent for the lending
institutions party thereto, and with such lending institutions. Among other things, Amendment No. 2 modified the Companys existing Credit Agreement to amend the facility fee rates and applicable margins, extend the length of the facility to
June 15, 2010, increase the swing line commitment component of the Credit Facility to $35.0 million, and relax certain covenants.



Additional information regarding the Companys indebtedness is included in the Companys Annual Report on Form 10-K for the year ended March 31,
2005, filed with the Securities and Exchange Commission on June 14, 2005.



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##### Table of Contents

STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



7. Additional Consolidated Balance Sheets Information



Additional information related to the Companys Consolidated Balance
Sheets is as follows:



|                                                    |  |                   |        |               |   |       
|--------------------------------------------------- |  | ----------------- | ------ | ------------- | - | ------
|                                                    |  | September 30,2005 |        | March 31,2005
|Accrued payroll and other related liabilities:      |  |                   |        |               |   |       
|Compensation and related items                      |  | $                 | 12,873 |               | $ | 12,435
|Accrued vacation                                    |  |                   | 11,283 |               |   | 12,967
|Accrued bonuses                                     |  |                   | 4,816  |               |   | 7,697 
|Accrued employee commissions                        |  |                   | 5,852  |               |   | 8,617 
|                                                    |  |                   |        |               |   |       
|Total accrued payroll and other related liabilities |  | $                 | 34,824 |               | $ | 41,716
|                                                    |  |                   |        |               |   |       
|Accrued expenses and other:                         |  |                   |        |               |   |       
|Deferred revenues                                   |  | $                 | 24,746 |               | $ | 34,376
|Self-insured risk retention-GRIC                    |  |                   | 16,151 |               |   | 16,043
|Other insurance                                     |  |                   | 973    |               |   | 1,537 
|Retirement benefit obligations-current portion      |  |                   | 9,312  |               |   | 9,342 
|Accrued dealer commissions                          |  |                   | 5,491  |               |   | 4,589 
|Accrued warranty                                    |  |                   | 6,153  |               |   | 6,230 
|Other                                               |  |                   | 27,256 |               |   | 22,069
|                                                    |  |                   |        |               |   |       
|Total accrued expenses and other                    |  | $                 | 90,082 |               | $ | 94,186
|                                                    |  |                   |        |               |   |       
|Other liabilities:                                  |  |                   |        |               |   |       
|Retirement benefit obligations-long-term portion    |  | $                 | 66,283 |               | $ | 65,133
|                                                    |  |                   |        |               |   |       
|Total other liabilities                             |  | $                 | 66,283 |               | $ | 65,133
|                                                    |  |                   |        |               |   |       



8. Income Tax Expense



Income tax expense includes U.S. federal, state and
local, and foreign income taxes, and is based on reported pre-tax income. Income tax expense is provided on an interim basis based upon the Companys estimate of the annual effective income tax rate, adjusted each quarter for discrete items. In
determining the estimated annual effective income tax rate, the Company analyzes various factors, including projections of the Companys annual earnings and taxing jurisdictions in which the earnings will be generated, the impact of state and
local income taxes, the Companys ability to use tax credits and net operating loss carryforwards, and available tax planning alternatives. The effective income tax rates for the three month periods ended September 30, 2005 and 2004 were 37.1%
and 37.4%, respectively. For the six month periods ended September 30, 2005 and 2004, the effective income tax rates were 37.6% and 36.5%, respectively.



9. Benefit Plans



The Company provides defined benefit pension plans for certain manufacturing and plant administrative personnel throughout the world as determined by
collective bargaining agreements or employee benefit standards set at the time of acquisition of certain businesses. In addition to providing pension benefits to certain employees, the Company sponsors an unfunded post-retirement medical benefit
plan for two groups of U.S. employees comprised substantially of the same employees who receive pension benefits under the U.S. defined benefit pension plans. Benefits under this plan include retiree life insurance and retiree medical insurance,
including prescription drug coverage and Medicare supplemental coverage. Additional information regarding the



11



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##### Table of Contents

STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



Companys defined benefit pension plans and other post-retirement medical benefit plan is included in the Companys Annual Report on Form 10-K for
the year ended March 31, 2005, filed with the Securities and Exchange Commission on June 14, 2005.



Components of the net periodic benefit cost of the Companys defined benefit pension plans and other post-retirement medical benefit plan were as
follows:



|                                 |  |                               |      |   |                             |   |      |      |  |   |      |   |  |      |     |      |  |   |       |  |   |      
|-------------------------------- |  | ----------------------------- | ---- | - | --------------------------- | - | ---- | ---- |  | - | ---- | - |  | ---- | --- | ---- |  | - | ----- |  | - | -----
|                                 |  | Defined Benefit Pension Plans |      |   | Other Post- Retirement Plan
|                                 |  | U.S. Qualified                |      |   | International               |   |     
|Three Months Ended September 30, |  | 2005                          |      |   | 2004                        |   |      | 2005 |  |   | 2004 |   |  | 2005 |     | 2004
|Service cost                     |  | $                             | 222  |   |                             | $ | 213  |      |  | $ | 246  |   |  | $    | 164 |      |  | $ | 272   |  | $ | 235  
|Interest cost                    |  |                               | 646  |   |                             |   | 649  |      |  |   | 159  |   |  |      | 144 |      |  |   | 1,134 |  |   | 1,172
|Expected return on plan assets   |  |                               | (697 | ) |                             |   | (733 | )    |  |   | (125 | ) |  |      | (89 | )    |  |   |      |  |   |     
|Net amortization and deferral    |  |                               | 209  |   |                             |   | 144  |      |  |   | 5    |   |  |      |    |      |  |   | 438   |  |   | 476  
|                                 |  |                               |      |   |                             |   |      |      |  |   |      |   |  |      |     |      |  |   |       |  |   |      
|Net periodic benefit cost        |  | $                             | 380  |   |                             | $ | 273  |      |  | $ | 285  |   |  | $    | 219 |      |  | $ | 1,844 |  | $ | 1,883
|                                 |  |                               |      |   |                             |   |      |      |  |   |      |   |  |      |     |      |  |   |       |  |   |      



|                               |  |                               |        |   |                             |   |        |      |  |   |      |   |  |      |      |      |  |   |       |  |   |      
|------------------------------ |  | ----------------------------- | ------ | - | --------------------------- | - | ------ | ---- |  | - | ---- | - |  | ---- | ---- | ---- |  | - | ----- |  | - | -----
|                               |  | Defined Benefit Pension Plans |        |   | Other Post- Retirement Plan
|                               |  | U.S. Qualified                |        |   | International               |   |       
|Six Months Ended September 30, |  | 2005                          |        |   | 2004                        |   |        | 2005 |  |   | 2004 |   |  | 2005 |      | 2004
|Service cost                   |  | $                             | 444    |   |                             | $ | 426    |      |  | $ | 430  |   |  | $    | 328  |      |  | $ | 544   |  | $ | 470  
|Interest cost                  |  |                               | 1,292  |   |                             |   | 1,298  |      |  |   | 302  |   |  |      | 288  |      |  |   | 2,268 |  |   | 2,344
|Expected return on plan assets |  |                               | (1,394 | ) |                             |   | (1,466 | )    |  |   | (210 | ) |  |      | (178 | )    |  |   |      |  |   |     
|Net amortization and deferral  |  |                               | 418    |   |                             |   | 288    |      |  |   | 5    |   |  |      |     |      |  |   | 876   |  |   | 952  
|                               |  |                               |        |   |                             |   |        |      |  |   |      |   |  |      |      |      |  |   |       |  |   |      
|Net periodic benefit cost      |  | $                             | 760    |   |                             | $ | 546    |      |  | $ | 527  |   |  | $    | 438  |      |  | $ | 3,688 |  | $ | 3,766
|                               |  |                               |        |   |                             |   |        |      |  |   |      |   |  |      |      |      |  |   |       |  |   |      



It is the
Companys practice to fund amounts for the defined benefit pension plans at least sufficient to meet the minimum requirements set forth in applicable employee benefit laws and local tax laws. Liabilities for amounts in excess of these funding
levels are included on the accompanying Consolidated Balance Sheets of the Company. As of September 30, 2005, the Company does not expect to make contributions to the defined benefit pension plans during fiscal 2006.



In December 2003, the Medicare Prescription Drug, Improvement and
Modernization Act of 2003 (the Act) was signed into law. The Act expands Medicare benefits, primarily adding a prescription drug benefit for Medicare-eligible retirees beginning in 2006, as well as a federal subsidy to sponsors of
retiree healthcare benefit plans that provide a benefit that is at least actuarially equivalent to Medicare Part D. In May 2004, the Financial Accounting Standards Board issued FASB Staff Position No. 106-2 (FSP No. 106-2),
Accounting and Disclosure Requirements Related to the Medicare Prescription Drug, Improvement and Modernization Act of 2003, which provides guidance on the accounting for the effects of the Act. The Company adopted FSP No. 106-2 on
March 31, 2005. The effects of the adoption resulted in a reduction of $10,500 to the Companys accumulated other post-retirement benefit obligation at March 31, 2005. This amount is being amortized over approximately twelve years. For the
quarter and six months ended September 30, 2005, the effects of the adoption of FSP No. 106-2 resulted in a reduction of the Companys net periodic benefit cost of $225 and $450, respectively.



12



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##### Table of Contents

STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



10. Contingencies



The Company is involved in various patent, product liability, consumer, environmental, tax proceedings and claims, governmental investigations, and other
legal and regulatory proceedings that arise from time to time in the ordinary course of business. In accordance with Statement of Financial Accounting Standards No. 5, Accounting for Contingencies, the Company records accruals for such
contingencies to the extent that the Company concludes that their occurrence is both probable and estimable. The Company considers many factors in making these assessments, including the professional judgment of experienced members of management and
the Companys legal counsel. The Company has made estimates as to the likelihood of unfavorable outcomes and the amounts of such potential losses. In the opinion of management, the ultimate outcome of these proceedings and claims is not
anticipated to have a material adverse effect on the Companys consolidated financial position, results of operations, or cash flows. Litigation is inherently unpredictable and actual results could materially differ from the Companys
estimates. The Company records anticipated recoveries under applicable insurance contracts when assured of recovery.



To the extent that management of the Company believes it is probable that a taxing authority will take a sustainable position on a matter contrary to the
position taken by the Company, the Company provides tax accruals. If the Company was to prevail in matters for which accruals have been established, or is required to pay amounts in excess of established accruals, the Companys effective income
tax rate in a given financial statement period could be materially impacted.



Refer to Part II, Item 1, Legal Proceedings.



11. Business Segment Information



The Company operates and reports in three business segments: Healthcare, Life Sciences, and STERIS Isomedix Services. Operating income (loss) for each of the Companys reportable business segments reflects the
full allocation of all distribution, corporate, and research and development expenses to the reportable segments. These allocations are based upon variables such as segment headcount and revenues. The accounting policies for reportable segments are
the same as those for the consolidated Company. For the quarter and six months ended September 30, 2005, revenues from a single customer did not represent ten percent or more of any segments revenues. Additional information regarding the
Companys business segments is included in the Companys Annual Report on Form 10-K for the year ended March 31, 2005, filed with the Securities and Exchange Commission on June 14, 2005.



Segment Service Reclassification



Effective April 1, 2003, the Company was realigned from a single reportable
business segment to three strategically focused reportable business segments: Healthcare, Life Sciences, and STERIS Isomedix Services. As the Company continues the evolution of its business segments, the Company has made a change in the reporting of
its global service business which impacts the revenues and operating results of the Healthcare and Life Sciences segments. Effective April 1, 2005, the Company began tracking service revenues by customer account classification. Prior to April 1,
2005, the allocation between these segments was based upon geography. Segment revenues, the related costs of these revenues, and associated operating expenses have been reclassified to reflect the change in methodology. Fiscal 2005 information
presented in the following tables reflects these reclassifications.



13



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##### Table of Contents

STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



Financial information for each of the Companys reportable business segments is presented in the
following table:



|                         |  |                                 |         |   |                               |   |         |      |  |   |         |   |  |   |         |  
|------------------------ |  | ------------------------------- | ------- | - | ----------------------------- | - | ------- | ---- |  | - | ------- | - |  | - | ------- | -
|                         |  | Three Months EndedSeptember 30, |         |   | Six Months EndedSeptember 30, |  
|                         |  | 2005                            |         |   | 2004                          |   |         | 2005 |  |   | 2004    |  
|Revenues:                |  |                                 |         |   |                               |   |         |      |  |   |         |   |  |   |         |  
|Healthcare               |  | $                               | 193,992 |   |                               | $ | 179,218 |      |  | $ | 379,752 |   |  | $ | 347,632 |  
|Life Sciences            |  |                                 | 58,378  |   |                               |   | 61,382  |      |  |   | 116,810 |   |  |   | 123,330 |  
|STERIS Isomedix Services |  |                                 | 32,000  |   |                               |   | 24,246  |      |  |   | 64,506  |   |  |   | 48,681  |  
|                         |  |                                 |         |   |                               |   |         |      |  |   |         |   |  |   |         |  
|Total revenues           |  | $                               | 284,370 |   |                               | $ | 264,846 |      |  | $ | 561,068 |   |  | $ | 519,643 |  
|                         |  |                                 |         |   |                               |   |         |      |  |   |         |   |  |   |         |  
|Operating income (loss): |  |                                 |         |   |                               |   |         |      |  |   |         |   |  |   |         |  
|Healthcare               |  | $                               | 22,794  |   |                               | $ | 27,284  |      |  | $ | 46,037  |   |  | $ | 52,098  |  
|Life Sciences            |  |                                 | (713    | ) |                               |   | (800    | )    |  |   | (3,044  | ) |  |   | (2,553  | )
|STERIS Isomedix Services |  |                                 | 4,965   |   |                               |   | 4,383   |      |  |   | 11,302  |   |  |   | 9,337   |  
|                         |  |                                 |         |   |                               |   |         |      |  |   |         |   |  |   |         |  
|Total operating income   |  | $                               | 27,046  |   |                               | $ | 30,867  |      |  | $ | 54,295  |   |  | $ | 58,882  |  
|                         |  |                                 |         |   |                               |   |         |      |  |   |         |   |  |   |         |  



Financial information
for each of the Companys geographic areas is presented in the following table. Long-lived assets are those assets that are identified within the operations in each geographic area, including property, plant, equipment, goodwill, intangibles,
and other assets.



|                        |  |                                 |         |                               |   |         |  |      |         |  |   |        
|----------------------- |  | ------------------------------- | ------- | ----------------------------- | - | ------- |  | ---- | ------- |  | - | -------
|                        |  | Three Months EndedSeptember 30, |         | Six Months EndedSeptember 30,
|                        |  | 2005                            |         | 2004                          |   | 2005    |  | 2004
|Revenues:               |  |                                 |         |                               |   |         |  |      |         |  |   |        
|United States           |  | $                               | 229,284 |                               | $ | 210,324 |  | $    | 452,634 |  | $ | 414,361
|International           |  |                                 | 55,086  |                               |   | 54,522  |  |      | 108,434 |  |   | 105,282
|                        |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Total revenues          |  | $                               | 284,370 |                               | $ | 264,846 |  | $    | 561,068 |  | $ | 519,643
|                        |  |                                 |         |                               |   |         |  |      |         |  |   |        
|                        |  |                                 |         |                              
|                        |  | September 30,2005               |         | March 31,2005                 |   |         |  |     
|Long-lived assets:      |  |                                 |         |                               |   |         |  |      |         |  |   |        
|United States           |  | $                               | 604,757 |                               | $ | 607,548 |  |      |         |  |   |        
|International           |  |                                 | 143,321 |                               |   | 158,042 |  |      |         |  |   |        
|                        |  |                                 |         |                               |   |         |  |      |         |  |   |        
|Total long-lived assets |  | $                               | 748,078 |                               | $ | 765,590 |  |      |         |  |   |        
|                        |  |                                 |         |                               |   |         |  |      |         |  |   |        



12. Repurchases of Common Shares



During the first half of fiscal 2006, the Company
repurchased 1,623,300 of its common shares for $39,394, representing an average price of $24.27 per common share. At September 30, 2005, 1,102,700 common shares remained authorized for repurchase and 1,643,654 common shares were held in treasury.



13. Financial and Other Guarantees



The Company generally offers a limited parts and labor warranty on its
capital equipment. The specific terms and conditions of those warranties vary depending on the product sold and the country where the Company



14



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##### Table of Contents

STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



conducts business. The Company provides for the estimated cost of product warranties at the time product revenues are recognized. Amounts due to customers
for the Companys future performance under these warranties are recorded as a current liability on the accompanying Consolidated Balance Sheets within Accrued expenses and other. Factors that affect the Companys warranty
liability include the number and type of installed units, historical and anticipated rates of product failures, and material and service costs per claim. The Company periodically assesses the adequacy of its recorded warranty liabilities and adjusts
the amounts as necessary.



Changes in the Companys
warranty liability during the first half of fiscal 2006 were as follows:



|                                    |  |   |      
|----------------------------------- |  | - | -----
|Balance, March 31, 2005             |  | $ | 6,230
|Warranties issued during the period |  |   | 4,392
|Settlements made during the period  |  |   | 4,469
|                                    |  |   |      
|Balance, September 30, 2005         |  | $ | 6,153
|                                    |  |   |      



The Company also
issues product maintenance contracts to its customers that are accounted for in accordance with the requirements of FASB Technical Bulletin No. 90-1, Accounting for Separately Priced Extended Warranty and Product Maintenance Contracts.
Such contracts generally range in terms from 1 to 5 years and require the Company to maintain and repair capital products over the maintenance contract term. Amounts due from customers under these contracts are initially recorded as a liability for
deferred service contract revenue on the accompanying Consolidated Balance Sheets. The liability recorded for such deferred revenue was $15,164 and $13,081 as of September 30, 2005 and March 31, 2005, respectively. Such deferred revenues are then
amortized on a straight-line basis over the contract term and recognized as service revenues on the accompanying Consolidated Statements of Income. The activity related to the liability for deferred service contract revenues has been excluded from
the table presented above.



14. Foreign Currency Forward Contracts



The Company enters into forward contracts to hedge
potential foreign currency gains and losses that arise from assets and liabilities denominated in foreign currencies, including inter-company transactions. The Company does not use derivative financial instruments for speculative purposes. These
contracts are marked to market, with gains and losses recognized on the accompanying Consolidated Statements of Income within Selling, general, and administrative expenses. At September 30, 2005, the Company had forward contracts
outstanding to sell euros and British pounds sterling with notional amounts of 22.2 million euros and 4.1 million British pounds sterling, respectively. In addition, at September 30, 2005, the Company had forward contracts outstanding to buy
Canadian dollars with a notional amount of 18.7 million Canadian dollars.



15. Business Acquisitions



The Companys
consolidated financial statements include the results of operations for acquired businesses from the date of the respective acquisition. During fiscal 2005, the Company acquired FHSurgical (FHSurgical) (on March 24, 2005), certain assets
of Cosmed Group, Inc. (Cosmed) (on January 7, 2005), and Albert Browne Limited (Browne) (on September 15, 2004). The purchase price of the FHSurgical and Cosmed acquisitions has been preliminarily allocated to net assets and
goodwill and is subject to further adjustment as the Company finalizes costs associated with the respective acquisition and the valuation of their net assets. Additional information regarding recently acquired businesses is included in the
Companys Annual Report on Form 10-K for the year ended March 31, 2005, filed with the Securities and Exchange Commission on June 14, 2005.



15



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##### Table of Contents

STERIS CORPORATION



NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)(Continued)

(dollars in thousands, except per share amounts)



Pursuant to the terms of the Share Purchase Agreement with respect to Hamo Holding AG
(Hamo), the final settlement of certain working capital adjustments and the resolution of certain indemnification claims were made during the first quarter of fiscal 2006. Amounts received by the Company amounted to 2,150,000 Swiss
francs (approximately $1.7 million) and are included in Non-operating expense, net on the Consolidated Statements of Income. Hamo was acquired by the Company during fiscal 2004.



16. Business Disposition



During the third quarter of fiscal 2005, the Company sold its Detach product line (automated cleaning systems for
comparative medicine). During the second quarter and first half of fiscal 2005, revenues generated from this product line amounted to approximately $2.2 million and $4.2 million, respectively.



17. Subsequent Events



On October 31, 2005, the Company completed the sale of its freeze dryer (lyophilizer) product line to GEA Group of Germany
for 20.0 million euros (approximately $24.0 million). The transaction is anticipated to result in an after-tax gain to the Company of approximately $4.0 million. The freeze dryer product line, based in Cologne, Germany, was part of the
Companys Life Sciences segment and had revenues of approximately $40.0 million in fiscal 2005.



Subsequent to September 30, 2005, forward contracts to sell euros and British pounds sterling with notional amounts of 22.2 million euros and 4.1 million
British pounds sterling matured. In addition, forward contracts to buy Canadian dollars with a notional amount of 18.7 million Canadian dollars matured.



Subsequent to September 30, 2005, the Company entered into forward contracts to sell euros with a notional amount of 14.4 million euros and entered into
forward contracts to buy Canadian dollars with a notional amount of 15.0 million Canadian dollars.



On October 26, 2005, the Company announced that its Board of Directors had declared a quarterly cash dividend in the amount of $.04 per common share,
payable on December 7, 2005, to shareholders of record as of November 16, 2005.



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##### Table of Contents

Report of Independent Registered Public Accounting Firm



Board of Directors and Shareholders

STERIS Corporation



We have reviewed the consolidated balance sheet of STERIS Corporation and subsidiaries as of September 30, 2005, the related consolidated statements
of income for the three and six month periods ended September 30, 2005 and 2004, and the consolidated statements of cash flows for the six month periods ended September 30, 2005 and 2004. These financial statements are the responsibility of the
Companys management.



We conducted our review in
accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for
financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board, the objective of which is the expression of an opinion regarding the
financial statements taken as a whole. Accordingly, we do not express such an opinion.



Based upon our review, we are not aware of any material modifications that should be made to the consolidated financial statements referred to above for them to be in conformity with U.S. generally accepted accounting
principles.



We have previously audited, in accordance with the
standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet of STERIS Corporation and subsidiaries as of March 31, 2005 and the related consolidated statements of income, shareholders equity and
cash flows for the year then ended, not presented herein, and in our report dated June 9, 2005, we expressed an unqualified opinion on those consolidated financial statements. In our opinion, the information set forth in the accompanying
consolidated balance sheet as of March 31, 2005, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.



/s/    Ernst & Young LLP



Cleveland, Ohio

November 8, 2005



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##### Table of Contents

ITEM 2. MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS



Financial Measures. In the following sections of Managements Discussion and Analysis of Financial Condition and Results of Operations
(MD&A), the Company, at times, may refer to financial measures that are not required to be presented in the consolidated financial statements under U.S. generally accepted accounting principles. The Company has used the following
financial measures that are not required to be presented under U.S. generally accepted accounting principles in the context of this report: Backlog, debt to capital, and days sales outstanding. The Company defines these financial measures as
follows:



| |  |  | Backlog - is defined by the Company as the amount of unfilled capital purchase orders at a point in time. The Company uses this figure as a measure to assist in the projection of
short-term financial results and inventory requirements.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Debt to capital - is defined by the Company as total debt divided by the sum of total debt and shareholders equity. The Company uses this figure as a financial liquidity
measure to gauge its ability to borrow, provide strength/protection against creditors, fund growth, develop outside of its current business operations, and measure the risk of the Companys financial structure.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Days sales outstanding (DSOs) - is defined by the Company as the average collection period for sales revenues. It is calculated as net accounts receivable divided by the
trailing four quarters revenues, multiplied by 365. The Company uses this figure to help gauge the quality of its accounts receivable and expected time to collect.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



In the following sections of MD&A, the Company, at times, may also refer to financial measures which are considered to
be non-GAAP financial measures under the rules of the Securities and Exchange Commission. Non-GAAP financial measures used by the Company are as follows:



| |  |  | Free cash flow - is defined by the Company as cash flows from operating activities as presented in the Consolidated Statements of Cash Flows less purchases of property, plant,
equipment, and intangibles, net, which is also presented in the Consolidated Statements of Cash Flows. The Company uses this measure to gauge its ability to fund future growth outside of core operations, repurchase common shares, and pay cash
dividends. The following table reconciles the calculations of the Companys free cash flow for the six months ended September 30, 2005 and 2004:
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|                                                              |  |                                |        |      |   |       
|------------------------------------------------------------- |  | ------------------------------ | ------ | ---- | - | ------
|(dollars in thousands)                                        |  | Six Months Ended September 30,
|                                                              |  | 2005                           |        | 2004
|Cash flows from operating activities                          |  | $                              | 84,319 |      | $ | 61,376
|Purchases of property, plant, equipment, and intangibles, net |  |                                | 22,737 |      |   | 25,535
|                                                              |  |                                |        |      |   |       
|Free cash flow                                                |  | $                              | 61,582 |      | $ | 35,841
|                                                              |  |                                |        |      |   |       



The Company, at times,
may refer to its results of operations excluding certain transactions or amounts that are non-recurring or are not indicative of future results, in order to provide meaningful comparative analysis between the periods presented. For example, when
discussing changes in revenues, the Company may, at times, exclude the impact of recently completed acquisitions and dispositions.



The Company has presented these financial measures because it believes that meaningful analysis of its financial performance is enhanced by an
understanding of certain additional factors underlying that performance. These financial measures should not be considered alternatives to measures required by U.S. generally accepted accounting principles. The Companys calculations of these
measures may differ from calculations of similar measures used by other companies.



Revenues - Defined. As required by Regulation S-X, the Company has presented separately on its Consolidated Statements of Income for each period presented, revenues generated as either product revenues or



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##### Table of Contents

service revenues. In discussing revenues, the Company, at times, may refer to revenues in differing detail than that which is required by Regulation S-X. The
terminology, definitions, and applications of terms that the Company uses to describe revenues may differ from terms used by other companies. The Company uses the following terms to describe revenues:



| |  |  | Revenues - The Companys revenues are presented net of sales returns and allowances.
| | - |  | ------------------------------------------------------------------------------------



| |  |  | Product Revenues - Product revenues are defined by the Company as revenues generated from sales of capital equipment, which includes steam and low temperature liquid
sterilizers, washing systems, freeze dryers, VHP®
technology, water stills, and pure steam generators; surgical lights and tables; and the consumable family of products, which includes STERIS SYSTEM 1® consumables, sterility assurance products, skin care products, and cleaning consumables.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Service Revenues - Service revenues are defined by the Company as revenues generated from parts and labor associated with the maintenance, repair, and installation of
capital equipment, as well as revenues generated from contract sterilization offered through the Companys Isomedix Services segment.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Capital Revenues - Capital revenues, a subset of product revenues, are defined by the Company as revenues generated from sales of capital equipment, which includes
steam and low temperature liquid sterilizers, washing systems, freeze dryers, VHP® technology, water stills, and pure steam generators; and surgical lights and tables.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Consumable Revenues - Consumable revenues are defined by the Company as revenues generated from sales of the consumable family of products, which includes STERIS
SYSTEM 1® consumables, sterility assurance
products, skin care products, and cleaning consumables.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Recurring Revenues - Recurring revenues are defined by the Company as revenues generated from sales of consumable products and service revenues.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Acquired Revenues -Acquired revenues are defined by the Company as base revenues generated from acquired businesses or assets and additional volumes driven through
acquired businesses or assets. The Company will use such measure for up to a year after acquisition.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



General Company Overview and Executive Summary. The mission of STERIS Corporation is to provide a healthier today and safer tomorrow through
knowledgeable people and innovative infection prevention, decontamination and health science technologies, products, and services. The Companys dedicated employees around the world work together to supply a broad range of solutions by offering
a combination of equipment, consumables, and services to healthcare, pharmaceutical, industrial, and governmental customers.



The Companys revenues are primarily derived from the healthcare and pharmaceutical industries. Much of the growth in its markets is driven by the
aging of the population throughout the world, as an increasing number of individuals are entering their prime healthcare consumption years. In addition, each of STERISs core industries are also benefiting from specific trends that drive
growth. Within the healthcare market, there is increased concern regarding the level of hospital-acquired infections around the world. The pharmaceutical industry has been impacted by increased Food & Drug Administration (FDA)
scrutiny of cleaning and validation processes, mandating that manufacturers improve their processes. In the contract sterilization industry, where Isomedix competes, an increasing trend toward the outsourcing of sterilization services continues to
drive growth.



Beyond STERISs core markets,
infection-control issues are becoming a global concern, and emerging threats have gained prominence in the news. Through STERISs Life Sciences segment, the Company is actively pursuing new opportunities to adapt its proven technologies to meet
the needs of emerging markets such as defense, aerospace, and industrial decontamination.



Fiscal 2006 second quarter and first half revenues were $284.4 million and $561.1 million, respectively, representing increases of 7.4% and 8.0%, respectively, as compared to the same prior year periods. Revenue
growth in the second quarter and first half of fiscal 2006 was driven by increased revenues within the Companys



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##### Table of Contents

Healthcare and Isomedix Services segments. Fiscal 2006 second quarter and year to date revenues benefited from revenues associated with the acquisitions of
Browne, FHSurgical, and certain assets of Cosmed, all of which occurred during the last twelve months. Revenue growth as a result of these acquisitions was 5.7% and 5.5%, respectively, for the second quarter and first half of fiscal 2006. Organic
revenue growth during the second quarter and first half of fiscal 2006 was negatively impacted by continued weaknesses in the Companys Life Sciences segment, primarily related to international freeze dryer sales, as well as reduced demand for
various products in the Companys surgical support business, and was 1.7% and 2.5%, respectively.



The Companys gross margin percentages were 40.9% and 41.7%, for the second quarter and first half of fiscal 2006, respectively, representing
decreases of 120 basis points and 90 basis points, respectively, from the same prior year periods. Gross margins for both fiscal 2006 periods were negatively impacted by higher raw material costs, particularly for stainless steel and certain
petroleum-based chemicals, as well as increased freight costs related to increases in fuel prices. Gross margins were also negatively impacted by direct costs associated with the operations of recently acquired businesses and reduced volumes within
certain manufacturing processes, which resulted in lower fixed cost absorption. Fiscal 2005 margins were negatively impacted by weak margins in the Companys former Detach business. This business was disposed of by the Company during the third quarter of fiscal 2005.



The Companys financial position and cash flows remain strong. A
continued focus on working capital management and reduced capital spending levels resulted in fiscal 2006 first half free cash flow of $61.6 million. The Company continues to maintain low debt levels with its debt-to-capital ratio approximating
12.8% at September 30, 2005. During the first half of fiscal 2006, the Company continued to repurchase shares through a common share repurchase program, in which approximately 1.6 million common shares were repurchased at an average purchase price
per share of $24.27. The Company also paid cash dividends during the first half of fiscal 2006 of $0.08 per common share. The Companys strong financial position and cash flows currently give it the financial flexibility to consider certain
strategic alternatives to return value to shareholders, such as or including strategic acquisitions, other initiatives that strengthen the Companys long-term competitive position, potential common share repurchases, and cash dividends.



On October 31, 2005, the Company completed the sale of its
freeze dryer (lyophilizer) product line to GEA Group of Germany for 20.0 million euros (approximately $24.0 million). The transaction is anticipated to result in an after-tax gain to the Company of approximately $4.0 million. The freeze dryer
product line, based in Cologne, Germany, was part of the Companys Life Sciences segment and had revenues of approximately $40.0 million in fiscal 2005.



Additional information regarding the Companys fiscal 2006 second quarter and first half financial performance is included in the subsection below
titled Results of Operations.



Matters Affecting Comparability.



Business Acquisitions. The Companys
financial results include the results of operations for acquired businesses from the date of the respective acquisition. During fiscal 2005, the Company acquired FHSurgical (on March 24, 2005), certain assets of Cosmed (on January 7, 2005), and
Browne (on September 15, 2004). Fiscal 2006 second quarter and first half operating results include aggregate revenues of $15.1 million and $28.5 million, respectively, related to these acquisitions. Fiscal 2006 second quarter and first half
gross margins related to recently-acquired businesses amounted to $7.9 million and $14.7 million, respectively, resulting in acquisition-related gross margin percentages of 52.3% and 51.6% for the fiscal 2006 second quarter and first half,
respectively.



Business Dispositions. During the
third quarter of fiscal 2005, the Company sold its Detach product line (automated cleaning systems for comparative medicine). During the second quarter and first half of fiscal 2005, revenues generated from this product line amounted to approximately $2.2 million and $4.2
million, respectively. Fiscal 2005 gross margins associated with the Detach product line were minimal.



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##### Table of Contents

International Operations. Given the nature of the Companys global operations, it
maintains an inherent exposure to fluctuations in foreign currencies. During the second quarter of fiscal 2006, the Companys revenues were favorably impacted by $1.0 million, or 0.3%, and net income was favorably impacted by $0.5 million, or
3.3%, as compared to the same period in fiscal 2005 as a result of foreign currency fluctuations. During the first half of fiscal 2006, the Companys revenues were favorably impacted by $2.9 million, or 0.5%, and net income was negatively
impacted by $0.2 million, or 0.7%, as compared to the same prior year period.



Results of Operations. The following subsections provide information regarding the Companys results of operations for the second quarter and first half of fiscal 2006 as compared to the same fiscal 2005
periods.



Revenues. The following table contains
information regarding the Companys revenues for the second quarter and first half of fiscal 2006 and 2005:



|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|---------------------- |  | ------------------------------- | ------- | ------ | - | -------------- |  | ---- | ------------------------ |  | ---- | - |  | ----- | - |  | ----- | -
|(dollars in thousands) |  | Three Months EndedSeptember 30, |         | Change |   | Percent Change |  |      | Percent of TotalRevenues | 
|                       |  | 2005                            |         | 2004   |   |                |  | 2005 |                          |  | 2004 |  
|Capital Revenues       |  | $                               | 122,929 |        | $ | 119,722        |  | $    | 3,207                    |  | 2.7  | % |  | 43.2  | % |  | 45.2  | %
|Consumable Revenues    |  |                                 | 61,748  |        |   | 56,890         |  |      | 4,858                    |  | 8.5  | % |  | 21.7  | % |  | 21.5  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Product Revenues       |  |                                 | 184,677 |        |   | 176,612        |  |      | 8,065                    |  | 4.6  | % |  | 64.9  | % |  | 66.7  | %
|                       |  |                                 |         |        |   |               
|Service Revenues       |  |                                 | 99,693  |        |   | 88,234         |  |      | 11,459                   |  | 13.0 | % |  | 35.1  | % |  | 33.3  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Total Revenues         |  | $                               | 284,370 |        | $ | 264,846        |  | $    | 19,524                   |  | 7.4  | % |  | 100.0 | % |  | 100.0 | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Service Revenues       |  | $                               | 99,693  |        | $ | 88,234         |  | $    | 11,459                   |  | 13.0 | % |  | 35.1  | % |  | 33.3  | %
|Consumable Revenues    |  |                                 | 61,748  |        |   | 56,890         |  |      | 4,858                    |  | 8.5  | % |  | 21.7  | % |  | 21.5  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Recurring Revenues     |  |                                 | 161,441 |        |   | 145,124        |  |      | 16,317                   |  | 11.2 | % |  | 56.8  | % |  | 54.8  | %
|                       |  |                                 |         |        |   |               
|Capital Revenues       |  |                                 | 122,929 |        |   | 119,722        |  |      | 3,207                    |  | 2.7  | % |  | 43.2  | % |  | 45.2  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Total Revenues         |  | $                               | 284,370 |        | $ | 264,846        |  | $    | 19,524                   |  | 7.4  | % |  | 100.0 | % |  | 100.0 | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|United States          |  | $                               | 229,284 |        | $ | 210,324        |  | $    | 18,960                   |  | 9.0  | % |  | 80.6  | % |  | 79.4  | %
|International          |  |                                 | 55,086  |        |   | 54,522         |  |      | 564                      |  | 1.0  | % |  | 19.4  | % |  | 20.6  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Total Revenues         |  | $                               | 284,370 |        | $ | 264,846        |  | $    | 19,524                   |  | 7.4  | % |  | 100.0 | % |  | 100.0 | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|                       |  |                                 |         |       
|                       |  | Six Months EndedSeptember 30,   |         | Change |   | Percent Change |  |      | Percent of TotalRevenues | 
|                       |  | 2005                            |         | 2004   |   |                |  | 2005 |                          |  | 2004 |  
|Capital Revenues       |  | $                               | 233,679 |        | $ | 230,484        |  | $    | 3,195                    |  | 1.4  | % |  | 41.6  | % |  | 44.4  | %
|Consumable Revenues    |  |                                 | 127,918 |        |   | 114,553        |  |      | 13,365                   |  | 11.7 | % |  | 22.8  | % |  | 22.0  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Product Revenues       |  |                                 | 361,597 |        |   | 345,037        |  |      | 16,560                   |  | 4.8  | % |  | 64.4  | % |  | 66.4  | %
|                       |  |                                 |         |        |   |               
|Service Revenues       |  |                                 | 199,471 |        |   | 174,606        |  |      | 24,865                   |  | 14.2 | % |  | 35.6  | % |  | 33.6  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Total Revenues         |  | $                               | 561,068 |        | $ | 519,643        |  | $    | 41,425                   |  | 8.0  | % |  | 100.0 | % |  | 100.0 | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Service Revenues       |  | $                               | 199,471 |        | $ | 174,606        |  | $    | 24,865                   |  | 14.2 | % |  | 35.6  | % |  | 33.6  | %
|Consumable Revenues    |  |                                 | 127,918 |        |   | 114,553        |  |      | 13,365                   |  | 11.7 | % |  | 22.8  | % |  | 22.0  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Recurring Revenues     |  |                                 | 327,389 |        |   | 289,159        |  |      | 38,230                   |  | 13.2 | % |  | 58.4  | % |  | 55.6  | %
|                       |  |                                 |         |        |   |               
|Capital Revenues       |  |                                 | 233,679 |        |   | 230,484        |  |      | 3,195                    |  | 1.4  | % |  | 41.6  | % |  | 44.4  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Total Revenues         |  | $                               | 561,068 |        | $ | 519,643        |  | $    | 41,425                   |  | 8.0  | % |  | 100.0 | % |  | 100.0 | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|United States          |  | $                               | 452,634 |        | $ | 414,361        |  | $    | 38,273                   |  | 9.2  | % |  | 80.7  | % |  | 79.7  | %
|International          |  |                                 | 108,434 |        |   | 105,282        |  |      | 3,152                    |  | 3.0  | % |  | 19.3  | % |  | 20.3  | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  
|Total Revenues         |  | $                               | 561,068 |        | $ | 519,643        |  | $    | 41,425                   |  | 8.0  | % |  | 100.0 | % |  | 100.0 | %
|                       |  |                                 |         |        |   |                |  |      |                          |  |      |   |  |       |   |  |       |  



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Quarter over Quarter Comparison



Revenues increased $19.5 million, or 7.4%, to $284.4 million for the quarter ended September 30, 2005, as compared to $264.8
million for the same prior year quarter. As compared to the second quarter of fiscal 2005, recurring revenues increased $16.3 million, or 11.2%. The recurring revenues increase was generated from a 13.0% increase in service revenues and an 8.5%
increase in consumable revenues. Strong recurring revenue growth quarter-over-quarter was driven primarily by recent acquisitions, which contributed 7.9% to the recurring revenues growth rate, while the organic revenue growth rate was 3.4%.
Excluding revenues generated from recent acquisitions, capital revenues remained flat quarter-over-quarter, and were negatively impacted by continued weakness in the Companys Life Sciences segment, particularly within the European
pharmaceutical marketplace, as well as reduced demand for various products in the Companys surgical support business.



International revenues for the second quarter of fiscal 2006 amounted to $55.1 million, an increase of $0.6 million, or 1.0%, as compared to the second
quarter of fiscal 2005. Positive overall international recurring and capital Healthcare revenues growth was offset by continued weakness within the Companys Life Sciences segment, primarily within the European marketplace, where capital
equipment revenues declined 58.6%. This decline was primarily driven by lower levels of freeze dryer sales within the European marketplace. The international recurring revenues growth was driven by additional revenues generated from sales of
consumable products from the Browne business, which was acquired in September 2004. International Healthcare capital revenues, which were positively impacted by sales generated from the recently acquired FHSurgical business, grew 41.9%.



United States revenues for the second quarter of fiscal 2006 amounted to
$229.3 million, representing an increase of $19.0 million, or 9.0%, as compared to the second quarter of fiscal 2005. United States revenues benefited from strong performance in the Isomedix Services segment, which was comprised of 4.6% organic
revenue growth and 27.4% acquisition-related revenue growth associated with Cosmed. United States revenues also benefited from strong underlying demand for the Companys service offerings and consumable products, particularly in the Healthcare
segment.



Year over Year Comparison



Revenues increased $41.4 million, or 8.0%, to $561.1 million for the first
half of fiscal 2006, as compared to $519.6 million for the same prior year period. As compared to the first half of fiscal 2005, recurring revenues increased 13.2%, and were driven by acquisition-related growth, which contributed 7.7% to the
period-over-period growth rate. Excluding revenues generated from recent acquisitions, capital revenues declined 1.3% period-over-period, and were negatively impacted by reduced demand levels in the Companys Life Sciences international
pharmaceutical marketplace, primarily for freeze dryers, as well as reduced demand for various products in the Companys surgical support business.



International revenues for the first half of fiscal 2006 amounted to $108.4 million, an increase of $3.2 million, or 3.0%, as compared to the first half
of fiscal 2005. Fiscal 2006 year-to-date international revenues were positively impacted by strong recurring and capital revenue growth within the international Healthcare marketplace as a result of the acquisitions of Browne and FHSurgical. Within
the Companys Life Sciences segment, continued weakness in demand for capital equipment, primarily for freeze dryers, within the European marketplace, offset positive growth in international Healthcare capital revenues.



United States revenues for the first half of fiscal 2006 amounted to $452.6
million, an increase of $38.3 million, or 9.2%, as compared to the first half of fiscal 2005. Fiscal 2006 year-to-date United States revenues benefited from strong performance in the Isomedix Services segment, which resulted from the acquisition of
Cosmed. United States revenues also benefited from strong underlying demand for the Companys service offerings and consumable products, particularly in the Healthcare segment.



Revenues are further discussed on a segment basis in the section of MD&A titled Business Segment Results of
Operations.



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##### Table of Contents

Gross Profit.The following table contains information regarding the Companys gross
profit for the three and six months ended September 30, 2005 and 2004:



|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|----------------------------- | ---- | ------------------------------- | ------- | ---- | ------ | - | -------------- | - |  | - | ------ |  | ---- | -
|(dollars in thousands)        |      | Three Months EndedSeptember 30, |         |      | Change |   | Percent Change |  
|                              | 2005 |                                 |         | 2004 |        |   |               
|Gross Profit:                 |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Product                       |      | $                               | 74,683  |      |        | $ | 74,024         |   |  | $ | 659    |  | 0.9  | %
|Service                       |      |                                 | 41,550  |      |        |   | 37,464         |   |  |   | 4,086  |  | 10.9 | %
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Total Gross Profit            |      | $                               | 116,233 |      |        | $ | 111,488        |   |  | $ | 4,745  |  | 4.3  | %
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Gross Profit Percentage:      |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Product                       |      |                                 | 40.4    | %    |        |   | 41.9           | % |  |   |        |  |      |  
|Service                       |      |                                 | 41.7    | %    |        |   | 42.5           | % |  |   |        |  |      |  
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Total Gross Profit Percentage |      |                                 | 40.9    | %    |        |   | 42.1           | % |  |   |        |  |      |  
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|                              |      |                                 |        
|                              |      | Six Months EndedSeptember 30,   |         |      | Change |   | Percent Change |  
|                              |      | 2005                            |         |      | 2004   |   |                |  
|Gross Profit:                 |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Product                       |      | $                               | 149,965 |      |        | $ | 147,255        |   |  | $ | 2,710  |  | 1.8  | %
|Service                       |      |                                 | 84,039  |      |        |   | 74,125         |   |  |   | 9,914  |  | 13.4 | %
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Total Gross Profit            |      | $                               | 234,004 |      |        | $ | 221,380        |   |  | $ | 12,624 |  | 5.7  | %
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Gross Profit Percentage:      |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Product                       |      |                                 | 41.5    | %    |        |   | 42.7           | % |  |   |        |  |      |  
|Service                       |      |                                 | 42.1    | %    |        |   | 42.5           | % |  |   |        |  |      |  
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  
|Total Gross Profit Percentage |      |                                 | 41.7    | %    |        |   | 42.6           | % |  |   |        |  |      |  
|                              |      |                                 |         |      |        |   |                |   |  |   |        |  |      |  



Gross profit (margin)
is impacted by the volume, pricing, and mix of sales of the Companys products and services, as well as the costs associated with the products and services that are sold. Gross margin for the second quarter of fiscal 2006 amounted to 40.9%,
representing a decrease of 120 basis points as compared to the same prior year period. For the first half of fiscal 2006, gross margin amounted to 41.7%, representing a decrease of 90 basis points as compared to the same prior year period. Gross
margins for both fiscal 2006 periods were negatively impacted by higher raw material costs, particularly for stainless steel and certain petroleum-based chemicals, as well as increased freight costs related to increases in fuel prices. Gross margins
were also negatively impacted by direct costs associated with the operations of recently acquired businesses and reduced volumes within the Life Sciences segment, which resulted in lower fixed cost absorption within certain manufacturing processes.
These costs were partially offset by improved manufacturing efficiencies reflecting the Companys efforts to apply lean principles and a more favorable revenue mix.



Operating Expenses.The following table contains information regarding the Companys operating expenses
for the three and six months ended September 30, 2005 and 2004:



|                                     |      |                                 |        |        |   |                |  |   |       |  |      |  
|------------------------------------ | ---- | ------------------------------- | ------ | ------ | - | -------------- |  | - | ----- |  | ---- | -
|(dollars in thousands)               |      | Three Months EndedSeptember 30, |        | Change |   | Percent Change | 
|                                     | 2005 |                                 | 2004   |        |  
|Operating Expenses:                  |      |                                 |        |        |   |                |  |   |       |  |      |  
|Selling, General, and Administrative |      | $                               | 79,165 |        | $ | 71,944         |  | $ | 7,221 |  | 10.0 | %
|Research and Development             |      |                                 | 10,022 |        |   | 8,677          |  |   | 1,345 |  | 15.5 | %
|                                     |      |                                 |        |        |   |                |  |   |       |  |      |  
|Total Operating Expenses             |      | $                               | 89,187 |        | $ | 80,621         |  | $ | 8,566 |  | 10.6 | %
|                                     |      |                                 |        |        |   |                |  |   |       |  |      |  



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##### Table of Contents

|                                     |  |                               |         |        |   |                |  |   |        |  |      |  
|------------------------------------ |  | ----------------------------- | ------- | ------ | - | -------------- |  | - | ------ |  | ---- | -
|                                     |  | Six Months EndedSeptember 30, |         | Change |   | Percent Change | 
|                                     |  | 2005                          |         | 2004   |   |               
|Operating Expenses:                  |  |                               |         |        |   |                |  |   |        |  |      |  
|Selling, General, and Administrative |  | $                             | 160,958 |        | $ | 144,510        |  | $ | 16,448 |  | 11.4 | %
|Research and Development             |  |                               | 18,751  |        |   | 17,988         |  |   | 763    |  | 4.2  | %
|                                     |  |                               |         |        |   |                |  |   |        |  |      |  
|Total Operating Expenses             |  | $                             | 179,709 |        | $ | 162,498        |  | $ | 17,211 |  | 10.6 | %
|                                     |  |                               |         |        |   |                |  |   |        |  |      |  



Significant components
of total Selling, General, and Administrative expenses (SG&A) are compensation and benefit costs, fees for professional services, travel and entertainment, facilities costs, and other general and administrative expenses. As a
percentage of total revenue, SG&A increased 60 basis points and 90 basis points, respectively, to 27.8% and 28.7%, respectively, for the second quarter and first half of fiscal 2006 as compared to the same prior year periods. The increase in
SG&A in both fiscal 2006 periods resulted primarily from the absorption of direct costs associated with the operations of recently acquired businesses. In addition, the Company incurred higher advertising and trade show costs during the fiscal
2006 year to date period as a result of marketing efforts related to products and services of these acquired businesses. Expenses for professional fees also contributed to the increase in SG&A for the fiscal 2006 year to date period. These fees
increased as a result of various long-term strategic initiatives undertaken to improve business and management processes.



As a percentage of total revenues, research and development expenses were 3.5% and 3.3% for the three and six month periods ended September 30, 2005,
respectively, as compared to 3.3% and 3.5%, respectively, for the same prior year periods. For the three and six month periods ended September 30, 2005, research and development expenses increased 15.5% and 4.2% to $10.0 million and $18.8 million,
respectively, as compared to $8.7 million and $18.0 million during the same prior year periods. Research and development expenses are influenced by the number and timing of in-process projects and labor hours and other costs associated with these
projects. The Company continues to focus research and development efforts on product development, product improvements, and the development of new technological innovations. Research and development efforts continue to be focused in the defense and
industrial areas, sterile processing combination technologies, and the area of prions, or infectious proteins.



Non-Operating Expense, Net. The following table contains information regarding the Companys non-operating expense, net for
the three and six months ended September 30, 2005 and 2004:



|                                  |      |                                 |        |      |        |   |       |   |  |   |        |  
|--------------------------------- | ---- | ------------------------------- | ------ | ---- | ------ | - | ----- | - |  | - | ------ | -
|(dollars in thousands)            |      | Three Months EndedSeptember 30, |        |      | Change |  
|                                  | 2005 |                                 |        | 2004 |        |  
|Non-Operating Expense, Net:       |      |                                 |        |      |        |   |       |   |  |   |        |  
|Interest Expense                  |      | $                               | 1,303  |      |        | $ | 903   |   |  | $ | 400    |  
|Interest and Miscellaneous Income |      |                                 | (366   | )    |        |   | (218  | ) |  |   | (148   | )
|                                  |      |                                 |        |      |        |   |       |   |  |   |        |  
|Total Non-Operating Expense, Net: |      | $                               | 937    |      |        | $ | 685   |   |  | $ | 252    |  
|                                  |      |                                 |        |      |        |   |       |   |  |   |        |  
|                                  |      |                                
|                                  |      | Six Months EndedSeptember 30,   |        |      | Change |  
|                                  |      | 2005                            |        |      | 2004   |   |      
|Non-Operating Expense, Net:       |      |                                 |        |      |        |   |       |   |  |   |        |  
|Interest Expense                  |      | $                               | 2,524  |      |        | $ | 1,890 |   |  | $ | 634    |  
|Interest and Miscellaneous Income |      |                                 | (2,293 | )    |        |   | (504  | ) |  |   | (1,789 | )
|                                  |      |                                 |        |      |        |   |       |   |  |   |        |  
|Total Non-Operating Expense, Net: |      | $                               | 231    |      |        | $ | 1,386 |   |  | $ | (1,155 | )
|                                  |      |                                 |        |      |        |   |       |   |  |   |        |  



Non-operating expense,
net consists of interest expense on debt, offset by interest earned on cash, cash equivalents, short-term investment balances, and other miscellaneous income.



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Interest expense increased $0.4 million and $0.6 million during the second quarter and first half of
fiscal 2006, respectively, as compared to the same prior year periods as a result of higher average debt levels during both fiscal 2006 periods. Interest and other miscellaneous income increased $1.8 million during the first half of fiscal 2006 as
compared to the same prior year period. This increase resulted primarily from the final settlement of certain working capital adjustments and the resolution of certain indemnification claims pursuant to the terms of the Share Purchase Agreement with
respect to Hamo, which was acquired by the Company during fiscal 2004. This settlement occurred during the first quarter of fiscal 2006.



Income Tax Expense.The following table contains information regarding the Companys income tax expense and effective income tax rates
for the three and six months ended September 30, 2005 and 2004:



|                          |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  
|------------------------- | ---- | ------------------------------- | ------ | ---- | ------ | - | ------ | -------------- |  | - | ------ | - |  | ----- | -
|(dollars in thousands)    |      | Three Months EndedSeptember 30, |        |      | Change |   |        | Percent Change | 
|                          | 2005 |                                 |        | 2004 |        |   |       
|Income Tax Expense        |      | $                               | 9,694  |      |        | $ | 11,289 |                |  | $ | (1,595 | ) |  | -14.1 | %
|Effective Income Tax Rate |      |                                 | 37.1   | %    |        |   | 37.4   | %              |  |   |        |   |  |       |  
|                          |      |                                 |       
|                          |      | Six Months EndedSeptember 30,   |        |      | Change |   |        | Percent Change | 
|                          |      | 2005                            |        |      | 2004   |   |        |               
|Income Tax Expense        |      | $                               | 20,317 |      |        | $ | 20,986 |                |  | $ | (669   | ) |  | -3.2  | %
|Effective Income Tax Rate |      |                                 | 37.6   | %    |        |   | 36.5   | %              |  |   |        |   |  |       |  



The Company provides
for income tax expense on an interim basis based upon the Companys estimate of its annual effective income tax rate, adjusted quarterly for discrete items. In determining the estimated annual effective income tax rate, the Company analyzes
various factors, including projections of the Companys annual earnings and the taxing jurisdictions in which the earnings will be generated, the impact of state and local income taxes, the Companys ability to use tax credits and net
operating loss carryforwards, and available tax planning alternatives.



The Companys effective income tax rates were negatively impacted from a reduction of operating profits generated in international tax jurisdictions and the inability of the Company to utilize a portion of foreign tax credits against
foreign profits taxed in the United States.



Business
Segment Results of Operations.Certain reclassifications have been made to previously reported segment revenues, the related costs of these revenues, and associated operating expenses. These reclassifications are further discussed in Note 11
to the Companys consolidated financial statements, Business Segment Information. Information presented in the following tables and related discussion regarding segment revenues and operating results reflect these changes.



The Company operates and reports in three business segments:
Healthcare, Life Sciences, and STERIS Isomedix Services. Additional information regarding the Companys business segments is included in the Companys Annual Report on Form 10-K for the year ended March 31, 2005, filed with the Securities
and Exchange Commission on June 14, 2005. The following table contains information regarding business segment revenues for the three and six months ended September 30, 2005 and 2004:



|                         |      |                                  |         |        |   |         |                |   |        |   |  |      |  
|------------------------ | ---- | -------------------------------- | ------- | ------ | - | ------- | -------------- | - | ------ | - |  | ---- | -
|(dollars in thousands)   |      | Three Months Ended September 30, |         | Change |   |         | Percent Change |  
|                         | 2005 |                                  | 2004    |        |  
|Revenues:                |      |                                  |         |        |   |         |                |   |        |   |  |      |  
|Healthcare               |      | $                                | 193,992 |        | $ | 179,218 |                | $ | 14,774 |   |  | 8.2  | %
|Life Sciences            |      |                                  | 58,378  |        |   | 61,382  |                |   | (3,004 | ) |  | -4.9 | %
|STERIS Isomedix Services |      |                                  | 32,000  |        |   | 24,246  |                |   | 7,754  |   |  | 32.0 | %
|                         |      |                                  |         |        |   |         |                |   |        |   |  |      |  
|Total Revenues           |      | $                                | 284,370 |        | $ | 264,846 |                | $ | 19,524 |   |  | 7.4  | %
|                         |      |                                  |         |        |   |         |                |   |        |   |  |      |  



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|                         |  |                               |         |        |   |         |                |   |        |   |  |      |  
|------------------------ |  | ----------------------------- | ------- | ------ | - | ------- | -------------- | - | ------ | - |  | ---- | -
|                         |  | Six Months EndedSeptember 30, |         | Change |   |         | Percent Change |  
|                         |  | 2005                          |         | 2004   |   |        
|Revenues:                |  |                               |         |        |   |         |                |   |        |   |  |      |  
|Healthcare               |  | $                             | 379,752 |        | $ | 347,632 |                | $ | 32,120 |   |  | 9.2  | %
|Life Sciences            |  |                               | 116,810 |        |   | 123,330 |                |   | (6,520 | ) |  | -5.3 | %
|STERIS Isomedix Services |  |                               | 64,506  |        |   | 48,681  |                |   | 15,825 |   |  | 32.5 | %
|                         |  |                               |         |        |   |         |                |   |        |   |  |      |  
|Total Revenues           |  | $                             | 561,068 |        | $ | 519,643 |                | $ | 41,425 |   |  | 8.0  | %
|                         |  |                               |         |        |   |         |                |   |        |   |  |      |  



Healthcare Segment



Healthcare
segment revenues represented 68.2% of total revenues for the second quarter of fiscal 2006 as compared to 67.6% for the same prior year period. Healthcare revenues increased $14.8 million, or 8.2%, to $194.0 million for the quarter ended September
30, 2005, as compared to $179.2 million for the second quarter of fiscal 2005. Healthcare recurring revenue growth, which increased 8.4% quarter-over-quarter, was fueled by strong service revenue growth within the United States marketplace and
increased international consumable revenues primarily related to the recently-acquired Browne business. Excluding the impact of Browne, which contributed 10.2% to the Healthcare consumable revenue growth rate, Healthcare consumable revenues remained
flat quarter-over-quarter. Healthcare capital revenues, which benefited from the FHSurgical acquisition, increased 8.1% quarter-over-quarter, primarily within the segments international marketplace. Healthcare capital revenues were negatively
impacted by reduced demand for various products in the Companys surgical support business. At September 30, 2005, the Healthcare segments backlog amounted to $70.7 million, representing a decrease of $1.7 million, or 2.2%, as compared to
September 30, 2004. As compared to the first quarter of fiscal 2005, the segments backlog levels were flat.



Healthcare segment revenues represented 67.7% of total revenues for the first half of fiscal 2006 as compared to 66.9% for the same prior year period.
Healthcare revenues increased $32.1 million, or 9.2%, to $379.8 million for the six months ended September 30, 2005, as compared to $347.6 million for the same prior year period. Recurring and capital revenues within the segment increased 10.5% and
7.8%, respectively, period-over-period, for the reasons presented in the preceding paragraph.



Life Sciences Segment



Life Sciences segment revenues represented 20.5% of total revenues for the second quarter of fiscal 2006 as compared to 23.2% for the same prior year
period. Life Sciences revenues decreased $3.0 million, or 4.9%, to $58.4 million for the quarter ended September 30, 2005, as compared to $61.4 million for the second quarter of fiscal 2005. The decline in Life Sciences revenues was driven by an
11.1% decrease in capital revenues. Positive capital revenue growth within the United States marketplace was offset by continued weakness in demand within the international pharmaceutical marketplace, particularly for freeze dryers in Europe, where
capital revenues declined 58.6%. The overall decline in capital revenues within the segment was partially offset by 2.7% and 11.9% increases in United States consumable and service revenues, respectively. During the second quarter of fiscal 2005,
international capital revenues generated from the Detach product line amounted to $2.2 million and contributed to the quarter-over-quarter relative decline. At September 30, 2005, the Life Sciences segments backlog amounted to $53.8 million,
representing a decrease of $7.3 million, or 11.9% over the September 30, 2004 level. As compared to the first quarter of fiscal 2006, backlog levels in the segment were flat.



Life Sciences segment revenues represented 20.8% of total revenues for the first six months of fiscal 2006 as compared to
23.7% for the same prior year period. Life Sciences revenues decreased $6.5 million, or 5.3%, to $116.8 million for the first half of fiscal 2006, as compared to $123.3 million for the same prior year period. The decline in Life Sciences revenues
was driven by a 13.8% decrease in capital revenues, the reasons for which were presented in the preceding paragraph. An increase of 5.3% in recurring revenues partially offset the segments year-over-year decline in capital revenues. During the
first half of fiscal 2005, international capital revenues generated from the Detach product line amounted to $4.2 million and contributed to the year-over-year relative decline.



26



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##### Table of Contents

Isomedix Services Segment



STERIS Isomedix Services segment revenues represented 11.3% of total revenues for the second quarter of fiscal 2006 as
compared to 9.2% for the same prior year period. The segment experienced revenue growth of $7.8 million, or 32.0%, to $32.0 million during the second quarter of fiscal 2006, as compared to the second quarter of fiscal 2005. The addition of Cosmed to
the segments operations contributed 27.4% to the segments growth rate for the second quarter of fiscal 2006, while the organic revenue growth rate was 4.6%.



STERIS Isomedix Services segment revenues represented 11.5% of total revenues for the first six months of fiscal 2006 as
compared to 9.4% for the same prior year period. The segment experienced revenue growth of $15.8 million, or 32.5%, to $64.5 million during the first half of fiscal 2006, as compared to the first six months of fiscal 2005. The addition of Cosmed to
the segments operations contributed 26.5% to the segments growth rate for the first half of fiscal 2006, while the organic revenue growth was 6.0%.



The following table contains information regarding business segment operating income (loss) for the three and six months ended September 30, 2005 and
2004:



|                         |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  
|------------------------ | ---- | ------------------------------- | ------ | ---- | ------ | - | ------ | -------------- |  | - | ------ | - |  | ----- | -
|(dollars in thousands)   |      | Three Months EndedSeptember 30, |        |      | Change |   |        | Percent Change | 
|                         | 2005 |                                 |        | 2004 |        |   |       
|Operating Income (Loss): |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  
|Healthcare               |      | $                               | 22,794 |      |        | $ | 27,284 |                |  | $ | (4,490 | ) |  | -16.5 | %
|Life Sciences            |      |                                 | (713   | )    |        |   | (800   | )              |  |   | 87     |   |  | 10.9  | %
|STERIS Isomedix Services |      |                                 | 4,965  |      |        |   | 4,383  |                |  |   | 582    |   |  | 13.3  | %
|                         |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  
|Total Operating Income   |      | $                               | 27,046 |      |        | $ | 30,867 |                |  | $ | (3,821 | ) |  | -12.4 | %
|                         |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  
|                         |      |                                 |       
|                         |      | Six Months EndedSeptember 30,   |        |      | Change |   |        | Percent Change | 
|                         |      | 2005                            |        |      | 2004   |   |        |               
|Operating Income (Loss): |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  
|Healthcare               |      | $                               | 46,037 |      |        | $ | 52,098 |                |  | $ | (6,061 | ) |  | -11.6 | %
|Life Sciences            |      |                                 | (3,044 | )    |        |   | (2,553 | )              |  |   | (491   | ) |  | -19.2 | %
|STERIS Isomedix Services |      |                                 | 11,302 |      |        |   | 9,337  |                |  |   | 1,965  |   |  | 21.0  | %
|                         |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  
|Total Operating Income   |      | $                               | 54,295 |      |        | $ | 58,882 |                |  | $ | (4,587 | ) |  | -7.8  | %
|                         |      |                                 |        |      |        |   |        |                |  |   |        |   |  |       |  



To determine segment
operating income (loss), the Company reduces the respective segments gross profit by direct expenses and indirect cost allocations, which reflect the full allocation of all distribution, corporate, and research and development expenses.
Corporate cost allocations are based on each segments portion of revenues, headcount, or other variables in relation to the total Company.



Healthcare Segment



Healthcare operating income decreased $4.5 million and $6.1 million for the second quarter and first six months of fiscal 2006, respectively, as compared
to the same prior year periods. The segments operating margins were 11.7% and 12.1% for the second quarter and first half of fiscal 2006, respectively, representing decreases of 350 basis points and 290 basis points over the same prior year
periods, respectively. Operating results for both fiscal 2006 periods were negatively impacted by higher raw material costs, particularly for stainless steel and certain petroleum based chemicals, as well as increased freight costs related to
increases in fuel prices. Operating margins for both fiscal 2006 periods also reflect additional direct costs associated with Browne and FHSurgical, which were acquired during the last twelve months.



27



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##### Table of Contents

Life Sciences Segment



Life Sciences operating loss was $0.7 million and $3.0 million for the
second quarter and first six months of fiscal 2006, respectively, as compared to a loss of $0.8 million and $2.6 million for the same prior year periods, respectively. The segments operating results for all periods presented were negatively
impacted by reduced volumes and the resulting lower fixed cost absorption. Fiscal 2006 operating results were also negatively impacted by increased raw material costs.



STERIS Isomedix Services Segment



STERIS Isomedix Services operating income increased $0.6 million and $2.0
million for the second quarter and first six months of fiscal 2006, respectively, as compared to the same prior year periods. The segments operating margins were 15.5% and 17.5% for the second quarter and first half of fiscal 2006,
respectively, representing decreases of 260 basis points and 170 basis points over the same prior year periods, respectively. Operating margins for both fiscal 2006 periods reflect additional direct costs associated with Cosmed, which was acquired
in January 2005. Operating margins also reflect a change in revenue mix that resulted from the acquisition of Cosmed, whereby a greater portion of the segments revenues are generated from ethylene oxide, which typically carry lower margins.



Liquidity and Capital Resources.The following table
summarizes significant components of the Companys cash flows for the six months ended September 30, 2005 and 2004:



Cash Flows



|                                                                                            |  |                                |         |   |      |   |         |  
|------------------------------------------------------------------------------------------- |  | ------------------------------ | ------- | - | ---- | - | ------- | -
|                                                                                            |  | Six Months Ended September 30, |        
|(dollars in thousands)                                                                      |  | 2005                           |         |   | 2004 |  
|Operating activities:                                                                       |  |                                |         |   |      |   |         |  
|Net income                                                                                  |  | $                              | 33,747  |   |      | $ | 36,510  |  
|Non-cash items                                                                              |  |                                | 29,003  |   |      |   | 33,749  |  
|Changes in operating assets and liabilities, excluding the effects of business acquisitions |  |                                | 21,569  |   |      |   | (8,883  | )
|                                                                                            |  |                                |         |   |      |   |         |  
|Net cash provided by operating activities                                                   |  | $                              | 84,319  |   |      | $ | 61,376  |  
|                                                                                            |  |                                |         |   |      |   |         |  
|Investing activities:                                                                       |  |                                |         |   |      |   |         |  
|Purchases of property, plant, equipment, and intangibles, net                               |  | $                              | (22,737 | ) |      | $ | (25,535 | )
|Investments in businesses, net of cash acquired                                             |  |                                | (1,504  | ) |      |   | (52,923 | )
|                                                                                            |  |                                |         |   |      |   |         |  
|Net cash used in investing activities                                                       |  | $                              | (24,241 | ) |      | $ | (78,458 | )
|                                                                                            |  |                                |         |   |      |   |         |  
|Financing activities:                                                                       |  |                                |         |   |      |   |         |  
|Proceeds (payments) under credit facilities, net                                            |  | $                              | 1,700   |   |      | $ | (2,158  | )
|Payments on long-term obligations and capital leases, net                                   |  |                                | (1,932  | ) |      |   | (2,104  | )
|Repurchases of common shares                                                                |  |                                | (39,394 | ) |      |   | (33,868 | )
|Cash dividends paid to common shareholders                                                  |  |                                | (5,494  | ) |      |   |        |  
|Deferred financing fees                                                                     |  |                                | (217    | ) |      |   |        |  
|Stock option and other equity transactions, net                                             |  |                                | 5,992   |   |      |   | 7,589   |  
|                                                                                            |  |                                |         |   |      |   |         |  
|Net cash used in financing activities                                                       |  | $                              | (39,345 | ) |      | $ | (30,541 | )
|                                                                                            |  |                                |         |   |      |   |         |  
|Debt-to-captial ratio                                                                       |  |                                | 12.8    | % |      |   | 13.5    | %
|                                                                                            |  |                               
|Free cash flow                                                                              |  | $                              | 61,582  |   |      | $ | 35,841  |  



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Net Cash Provided by Operating Activities.Net cash provided by operating activities was
$84.3 million for the first half of fiscal 2006 as compared to $61.4 million for the first half of fiscal 2005. Operating cash flows were derived as follows:



| |  |  | Non-cash items- Non-cash items were $29.0 million for the first half of fiscal 2006 as compared to $33.7 million for the first half of fiscal 2005. Non-cash items include
depreciation, depletion, and amortization, changes in deferred income taxes, and other items. The most significant component of non-cash items in both periods presented was depreciation, depletion, and amortization, which amounted to $28.4 million
and $24.3 million for the first six months of fiscal 2006 and 2005, respectively. The $4.1 million increase in depreciation, depletion, and amortization, period-over-period, was the result of increased levels of depreciable assets and intangibles,
driven primarily by the fiscal 2005 acquisitions of Browne and Cosmed.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Working Capital- Excluding the impact of foreign currency translation adjustments and balances acquired from business acquisitions, working capital decreased $21.6 million and
increased $8.9 million for the first six months of fiscal 2006 and 2005, respectively. Information regarding significant components of the Companys fiscal 2006 first half working capital change is as follows (excluding the impact of foreign
currency translation adjustments and balances acquired from business acquisitions):
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Accounts receivable, net- Accounts receivable, net decreased $53.1 million during the first half of fiscal 2006. Accounts receivable balances are influenced by the timing of
revenues, customer collections, and progress billings that are accounted for under the percentage of completion method of accounting for construction-type contracts. Accounts receivable days sales outstanding decreased to 72 days at September 30,
2005, from 92 days at March 31, 2005. The decrease in DSOs from the March 31, 2005 level is reflective of improved and enhanced collection procedures.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Inventories, net- Inventories, net increased $16.9 million during the first half of fiscal 2006. The Company has established targeted inventory production levels at certain
manufacturing facilities, whereby a relatively constant stream of inventory production occurs, which may result in varying inventory levels during the year as a result of customer demand fluctuations.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Accounts payable, net- Accounts payable, net decreased $8.0 million during the first half of fiscal 2006 due primarily to varying payment due dates of accounts payable obligations
and the Companys cash management strategies.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Accruals and other, net- Accruals and other, net decreased $4.3 million during the first half of fiscal 2006. The decrease in accruals and other, net during the first half of fiscal
2006 was driven by the timing of payments under the Companys management incentive compensation programs. A reduction of accruals under various employee compensation programs and a decrease in deferred revenues also contributed to the decrease
in accruals and other, net during the fiscal 2006 first half. These amounts are influenced by the timing and mix of revenues.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Net Cash Used In Investing Activities- Cash flows used in investing activities amounted to $24.2
million for the first half of fiscal 2006 as compared to $78.5 million for the first half of fiscal 2005. Information regarding significant components of the Companys investing cash flows for the first six months of fiscal 2006 and 2005 is as
follows:



| |  |  | Purchases of property, plant, equipment, and intangibles, net- During the first six months of fiscal 2006, the Companys capital expenditures amounted to $22.7 million as
compared to $25.5 million during the same prior year period. Lower capital spending levels during the first half of fiscal 2006 resulted primarily from the completion of several in process facilities expansion projects and information technology
initiatives during the latter half of fiscal 2005. This reduction was partially offset by an increase in Isomedix capital expenditures period-over-period.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Investments in businesses, net of cash acquired- During the second quarter of fiscal 2005, the Company acquired Browne. Investment in this business, net of cash
acquired and other preliminary purchase
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | accounting adjustments amounted to $52.9 million. During the first half of fiscal 2006, preliminary purchase accounting adjustments for recently completed
acquisitions totaled $1.5 million.
| | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Net Cash Used In Financing Activities- Net cash used in financing activities amounted to $39.3 million for the first half of fiscal 2006 as compared to $30.5 million for the first half
of fiscal 2005. Information regarding the significant components of the Companys financing cash flows for the periods presented follows:



| |  |  | Repurchases of common shares- During the first half of fiscal 2006, the Company repurchased 1,623,300 of its common shares at an average purchase price of $24.27 per common shares
as compared to 1,539,100 of its common shares at an average purchase price of $22.01 per common share during the first half of fiscal 2005.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Cash dividend paid to common shareholders- During the first half of fiscal 2006, the Company paid cash dividends totaling $0.08 per outstanding common share ($0.04 per outstanding
common share to common shareholders of record on May 31, 2005 and $0.04 per outstanding common share to common shareholders of record on August 12, 2005). Total cash dividends paid during the first half of fiscal 2006 amounted to $5.5 million. The
Company did not pay cash dividends during the comparable prior year period.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Stock option and other equity transactions, net- Cash flows from stock option and other equity transactions, net are primarily derived from the issuance of the Companys common
shares under various employee stock compensation programs. During the first six months of fiscal 2006 and 2005, cash proceeds from the issuance of common shares under these programs totaled $6.0 million and $9.4 million, respectively.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



Sources of Credit and Contractual and
Commercial Commitments.Information regarding the Companys sources of credit and contractual and commercial commitments is included in the Companys Annual Report on Form 10-K for the year ended March 31, 2005, filed with the
Securities and Exchange Commission on June 14, 2005. The Companys commercial commitments are approximately $42.9 million at September 30, 2005 reflecting a net decline of $30.6 million in surety bonds and other commercial commitments from
March 31, 2005. The Companys contractual commitments have not changed materially from March 31, 2005. The maximum aggregate borrowing limits under the Credit Agreement of the Company described below have not changed since March 31, 2005. At
September 30, 2005, the maximum amount available under this Credit Agreement was $239.4 million. The maximum aggregate borrowing limit of $275.0 million under the Credit Agreement is reduced by outstanding amounts and letters of credit issued under
a sub-limit within the Credit Agreement. At September 30, 2005, these amounts totaled $2.9 million and $32.7 million, respectively.



As of June 16, 2005, the Company entered into Amendment No. 2 (Amendment No. 2) to the Amended and Restated Credit Agreement (the Credit
Agreement) dated March 29, 2004 with KeyBank National Association, as administrative agent for the lending institutions party thereto, and with such lending institutions. Among other things, Amendment No. 2 modified the Credit Agreement to
amend the facility fee rates and applicable margins, extend the length of the facility to June 15, 2010, increase the swing line commitment component of the Credit Facility to $35.0 million, and relax certain covenants.



Cash Requirements.The Company currently intends to fund short-term
and long-term capital expenditures, as well as liquidity needs, with existing cash and cash equivalent balances and its existing credit facility, as well as cash generated by operations. The Company believes that these sources will be sufficient to
meet working capital needs, capital requirements, and commitments for at least the next twelve months. However, the Companys capital requirements will depend on many factors, including the Companys rate of sales growth, market acceptance
of the Companys products and services, costs of securing access to adequate manufacturing capacities, the timing and extent of research and development projects, and changes in operating expenses, all of which are subject to uncertainty. To
the extent that the Companys existing sources of cash are insufficient to fund the Companys future activities, the Company may need to raise additional funds through public or private debt or equity financing. Additional funds may not be
available on favorable terms to the Company, or at all.



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Critical Accounting Policies, Estimates, and Assumptions.Information related to the
Companys critical accounting policies, estimates, and assumptions is included in the Companys Annual Report on Form 10-K for the year ended March 31, 2005, filed with the Securities and Exchange Commission on June 14, 2005. The
Companys critical accounting policies, estimates, and assumptions have not changed materially from March 31, 2005.



Contingencies.The Company is involved in various patent, product liability, consumer, environmental, tax proceedings and claims, governmental
investigations, and other legal and regulatory proceedings that arise from time to time in the ordinary course of business. In accordance with Statement of Financial Accounting Standards No. 5, Accounting for Contingencies, the Company
records accruals for such contingencies to the extent that the Company concludes that their occurrence is both probable and estimable. The Company considers many factors in making these assessments, including the professional judgment of experienced
members of management and the Companys legal counsel. The Company has made estimates as to the likelihood of unfavorable outcomes and the amounts of such potential losses. In the opinion of management, the ultimate outcome of these proceedings
and claims is not anticipated to have a material adverse effect on the Companys consolidated financial position, results of operations, or cash flows. Litigation is inherently unpredictable and actual results could materially differ from the
Companys estimates. The Company records anticipated recoveries under applicable insurance contracts when assured of recovery.



To the extent that management of the Company believes it is probable that a taxing authority will take a sustainable position on a matter contrary to the
position taken by the Company, the Company provides tax accruals. If the Company was to prevail in matters for which accruals have been established, or is required to pay amounts in excess of established accruals, the Companys effective income
tax rate in a given financial statement period could be materially impacted.



International Operations.Given the nature of the Companys global operations, it maintains an inherent exposure to fluctuations in foreign currencies. During the second quarter of fiscal 2006, the
Companys revenues were favorably impacted by $1.0 million, or 0.3%, and net income was favorably impacted by $0.5 million, or 3.3%, as compared to the same period in fiscal 2005 as a result of foreign currency fluctuations. During the first
half of fiscal 2006, the Companys revenues were favorably impacted by $2.9 million, or 0.5% and net income was negatively impacted by $0.2 million, or 0.7% as compared to the same period in fiscal 2005. The Company cannot predict with
certainty future changes in foreign currency exchange rates or the effect they will have on the Companys operations.



Forward-Looking Statements.This document may contain statements concerning certain trends, expectations, forecasts, estimates, or other
forward-looking information affecting or relating to the Company or its industry that are intended to qualify for the protections afforded forward-looking statements under the Private Securities Litigation Reform Act of 1995 and other
laws and regulations. Forward-looking statements speak only as to the date of this report, and may be identified by the use of forward-looking terms such as may, will, expects, believes,
anticipates, plans, estimates, projects, targets, forecasts, and seeks, or the negative of such terms or other variations on such terms or comparable terminology.
Many important factors could cause actual results to differ materially from those in the forward-looking statements including, without limitation, disruption of production or supplies, changes in market conditions, political events, pending or
future claims or litigation, competitive factors, technology advances, and changes in government regulations or the application or interpretation thereof. Many of these important factors are outside STERISs control. No assurances can be
provided as to any future financial results. Unless legally required, the Company does not undertake to update or revise any forward-looking statements even if events make clear that any projected results, express or implied, will not be realized.
Other potential risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements include, without limitation, (a) the potential for increased pressure on pricing or raw material cost that
leads to erosion of profit margins, (b) the possibility that market demand will not develop for new technologies, products or applications, or the Companys business initiatives will take longer, cost more or produce lower benefits than
anticipated, (c) the



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possibility that application of or compliance with laws, court rulings, regulations, certifications or other requirements or standards may delay or prevent
new product introductions, affect the production and marketing of existing products, or otherwise affect Company performance, results, or value, (d) the potential of international unrest or effects of fluctuations in foreign currencies of countries
where the Company does a sizeable amount of business, (e) the possibility of reduced demand, or reductions in the rate of growth in demand, for the Companys products and services, and (f) the possibility that the gain from the sale of the
freeze dryer product line may not be realized.



Availability
of Securities and Exchange Commission Filings.The Company files annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, amendments to those reports, and other information with the Securities and Exchange
Commission. Copies of these materials can be obtained by visiting the SECs Public Reference Room at 450 Fifth Street, NW, Washington, D.C. 20549, or by accessing the SECs website at http://www.sec.gov. Information on the Public
Reference Room may be obtained by calling the SEC at 1-800-SEC-0330. In addition, as soon as reasonably practicable after such materials are filed with or furnished to the SEC, the Company makes copies available to the public, free of charge, on or
through the investor relations section of its website at http://www.steris-ir.com. Information on the Companys website is not incorporated by reference into this report.



ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK



In the ordinary course of business, the Company is subject to interest rate, foreign currency, and commodity risks. Information related to these risks and
the Companys management of these exposures is included in Part II, Item 7A, Quantitative and Qualitative Disclosures about Market Risk, included in the Companys Annual Report on Form 10-K for the year ended March 31, 2005,
filed with the Securities and Exchange Commission on June 14, 2005. The Companys exposures to market risks have not changed materially since March 31, 2005.



ITEM 4. CONTROLS AND PROCEDURES



Under the supervision of and with the participation of the Companys management, including the Chief Executive Officer (CEO) and Chief Financial Officer (CFO), the Company evaluated the effectiveness of the
design and operation of its disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as of the end of the period covered by this Quarterly Report. Based on that
evaluation, the Companys management, including the CEO and CFO, concluded that as of September 30, 2005, the Companys disclosure controls and procedures were effective.



There were no changes in the Companys internal control over financial reporting, as defined in Rules 13a-15(f) and
15d-15(f) of the Securities Exchange Act of 1934, that occurred during the quarter ended September 30, 2005, that have materially affected, or are reasonably likely to materially affect, the Companys internal control over financial reporting.



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PART II - OTHER INFORMATION



ITEM 1. LEGAL PROCEEDINGS



The
Company is involved in a number of legal proceedings and claims, which the Company believes arise from the ordinary course of its business, given its size, history, complexity, nature of its business, and industries in which it participates. These
legal proceedings and claims generally involve a variety of legal theories and allegations, including without limitation, personal injury (e.g., slip and falls, automobile accidents), product liability (e.g., based on the operation or claimed
malfunction of products), product exposure (e.g., claimed exposure to chemicals, asbestos, contaminants), property damage (e.g., claimed damage due to leaking equipment, fire), economic loss (e.g., breach of contract, other commercial claims),
employment (e.g., wrongful termination), and other claims for damage and relief.



The FDA and the U.S. Department of Justice are conducting an investigation believed to involve the Companys SYSTEM 1®sterile processing system. In January 2005, the Company received a subpoena for documents in connection with the investigation. The
Company is currently responding to this subpoena and has offered and intends to cooperate with the government agencies regarding this matter.



The Company believes it has adequately reserved for its current litigation and that the ultimate outcome of its pending lawsuits and claims will not have
a material adverse effect on the Companys consolidated financial position or results of operations taken as a whole. Due to their inherent uncertainty, however, there can be no assurance of the ultimate outcome of current or future litigation,
proceedings, investigations, or claims or their effect. The Company presently maintains product liability insurance coverage, and other liability coverage in amounts and with deductibles that it believes are prudent.



From time to time, STERIS is also involved in legal proceedings as a
plaintiff involving contract, patent protection, and other claims asserted by the Company. Gains, if any, from these proceedings are recognized when they are realized.



The Company believes there have been no material recent developments concerning the Companys legal proceedings since
March 31, 2005 and no new material pending legal proceedings required to be reported.



ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS



No repurchases of common shares were made by or on behalf of the Company during the second quarter of fiscal 2006. As of September 30, 2005, 1,102,700
common shares remained authorized for repurchase under the common share repurchase program that was approved by the Companys Board of Directors and announced on July 28, 2004. This common share repurchase authorization does not have a stated
maturity.



ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS



The shareholders of the Company voted on the following items at the Annual Meeting of Shareholders held on July 29, 2005:



(a) Votes regarding the election of the persons named below as Directors of the Company for a term expiring at the Annual Meeting of Shareholders in 2006
were as follows:



|                       |  |            |  |           
|---------------------- |  | ---------- |  | ----------
|                       |  | FOR        |  | WITHHELD  
|Cynthia L. Feldmann    |  | 62,875,808 |  | 372,618   
|Stephen R. Hardis      |  | 42,517,452 |  | 20,730,974
|Jacqueline B. Kosecoff |  | 63,019,579 |  | 228,847   
|Raymond A. Lancaster   |  | 62,804,081 |  | 444,345   
|J.B. Richey            |  | 62,779,954 |  | 468,472   
|Mohsen M. Sohi         |  | 62,976,055 |  | 272,371   
|Les C. Vinney          |  | 62,676,453 |  | 571,973   



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(b) Votes regarding the proposal to approve the STERIS Corporation Senior Executive Management Incentive
Compensation Plan:



|           |  |           |  |         |  |                 
|---------- |  | --------- |  | ------- |  | ----------------
|FOR        |  | AGAINST   |  | ABSTAIN |  | BROKER-NON-VOTES
|60,161,724 |  | 2,749,417 |  | 337,285 |  |                



ITEM 6. EXHIBITS



|              |  |                                                                                                                                                                                                                                                                                                                                                      
|------------- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|ExhibitNumber |  | Exhibit Description                                                                                                                                                                                                                                                                                                                                  
|3.1           |  | 1992 Amended Articles of Incorporation of STERIS Corporation, as amended on May 14, 1996, November 6, 1996, and August 6, 1998 (filed as Exhibit 3.1 to Form 10-K filed for the fiscal year
ended March 31, 2000 (Commission File No. 1-14643), and incorporated herein by reference).                                                               
|              | 
|3.2           |  | Amended and Restated Regulations of STERIS Corporation (filed as Exhibit 3.2 to Form 10-Q for the fiscal quarter ended September 30, 2004, as originally filed (Commission File No. 1-14643),
and incorporated herein by reference).                                                                                                                 
|              | 
|4.1           |  | Specimen Form of Common Stock Certificate (filed as Exhibit 4.1 to Form 10-K filed for the fiscal year ended March 31, 2002 (Commission File No. 1-14643), and incorporated herein by
reference).                                                                                                                                                    
|              | 
|4.2           |  | Amended and Restated Rights Agreement, dated as of January 21, 1999, between STERIS Corporation and National City Bank, as successor Rights Agent (filed as Exhibit 4.2 to the Registration
Statement on Form 8-A filed April 16, 1999 (Commission File No. 1-14643), and incorporated herein by reference).                                         
|              | 
|4.3           |  | Amendment No. 1, dated June 7, 2002, to Amended and Restated Rights Agreement, dated as of January 21, 1999, between STERIS Corporation and National City Bank, as successor Rights Agent
(filed as Exhibit 4.1 to the Registration Statement on Form 8-A/A filed June 10, 2002 (Commission File No. 1-14643), and incorporated herein by reference).
|              | 
|10.1          |  | STERIS Corporation Senior Executive Management Incentive Compensation Plan filed as Exhibit 10.1 to Form 8-K filed August 3, 2005 (Commission File No. 1-14643), and incorporated herein by
reference.                                                                                                                                               
|              | 
|10.2          |  | STERIS Corporation Management Incentive Compensation Plan (as amended) filed as Exhibit 10.2 to Form 8-K filed August 3, 2005 (Commission File No. 1-14643), and incorporated herein by
reference.                                                                                                                                                   
|              | 
|15.1          |  | Letter Re: Unaudited Interim Financial Information.                                                                                                                                                                                                                                                                                                  
|              | 
|31.1          |  | Certification of the Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                              
|              | 
|31.2          |  | Certification of the Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                                                                                              
|              | 
|32.1          |  | Certification of the Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant Section 906 of the Sarbanes-Oxley Act of 2002.                                                                                                                                                                       



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SIGNATURE



Pursuant to the
requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.



STERIS Corporation/s/    LAURIE BRLASLaurie Brlas Senior Vice President and Chief Financial Officer (Principal Financial and Accounting Officer) November 9, 2005




35