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As adopted by the Board
 POLYPORE INTERNATIONAL, INC.
2006 STOCK OPTION PLAN
 1. Purpose And Intent .
   2. Definitions .
  Affiliate
 Annual EBITDA
 Annual EBITDA Target
 (i)
    
    for fiscal year 2006, $130.2 million;(ii)
    
    for fiscal year 2007, $142.1 million;(iii)
    
    for fiscal year 2008, $150.1 million; and




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(iv)
    
    for fiscal year 2009, $158.6 million.
  Annual Performance Vested Option
 Board
 Cause
 Change in Control
 Code
 2




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Committee
 Committee Verification Date
 Company
 Company Repurchase Right
 Company Securities
 Corporate Event
 Cumulative EBITDA
 Cumulative EBITDA Target
 (i)
    
    for fiscal year 2006, $130.2 million;(ii)
    
    for fiscal year 2007, $272.3 million;(iii)
    
    for fiscal year 2008, $422.4 million; and(iv)
    
    for fiscal year 2009, $581.0 million;
  Cumulative Performance Vested Option
 Disability
 Effective Date
 3




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Eligible Person
 Employer
 Exchange Act
 Expiration Date
 Fair Market Value
 Good Reason
 4




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IPO
 IPO Date
 Lock-Up Period
 Missed Year
 NRR
 Option
 Option Agreement
 Participant
 Participant Repurchase Right
 5




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Permitted Transfer
 Plan
 Prime Rate The Wall Street Journal
 Prior Options
 Prior Vested Options
 Prior Unvested Options
 Pro Rata Fraction
 Qualifying Terminated Participant and and
 Repurchase Price
   Repurchase Right
 6




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Repurchase Right Exercise Period
    Repurchase Right Lapse Date
 Securities Act
 Stock
 Warburg Investors
 3. Administration .
 Authority of the Committee
 Delegation
 7




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Section 409A
   4. Shares Available Under the Plan .
 Number of Shares Available for Delivery
 Share Counting Rules
 8




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5. Options .


General


Conditions to Grant


Term


Exercise Price


Payment for Stock 9




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Section 402 of SOX
 Vesting
   Annual Performance Vested Options Missed Year
 Cumulative Performance Vested Options e.g
 10




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Change in Control e.g e.g
 Expiration of Unvested Options
 Transferability of Options
 Termination of Employment or Service
   11




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6. Restrictions on Stock .
 Prohibition on Transfers Lock-Up Period
 Drag-Along Rights
  12




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13




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Tag-Along Rights
 Selling Stockholder Tag-Along Investors
   Permitted Transfers
 14




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7. Repurchase Rights Upon Termination of Employment .
 Company Repurchase Right Company Repurchase Right
 Participant Repurchase Right Participant Repurchase Right
 Exercise of Repurchase Rights
 Payment of Repurchase Price
 Assignment of Company Repurchase Right
 8. Adjustment for Recapitalization, Merger, etc .
 Capitalization Adjustments 15
        Corporate Events Corporate
Event
 Fractional Shares
 9. Use of Proceeds .
  10. Rights and Privileges as a Stockholder .
  16




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11. Employment or Service Rights .
  12. Compliance with Laws .
  13. Withholding Obligations .
 provided however
 14. Amendment of the Plan or Options .
 Amendment of Plan
 17




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No Impairment of Rights
 Amendment of Options
 15. Termination or Suspension of the Plan .
 th
 16. Effective Date of the Plan .
  17. Miscellaneous .
 Options to Participants Outside of the United States
 No Liability of Committee Members provided however 18
        Payments Following Accidents or Illness
 Governing Law
 Funding
 Reliance on Reports
 Titles and Headings
 19