**EXHIBIT 31.1**

**Certification Under Exchange ActRules 13a — 14(b) and 15d — 14(b)**

I, Sheldon Hoffman,certify that:

1.                                       I have reviewed thisquarterly report on Form 10-Q of Alpha Pro Tech, Ltd;

2.                                       Based on my knowledge,this  report does not contain any untruestatement of a material fact or omit to state a material fact necessary to makethe statements made, in light of the circumstances under which such statementswere made, not misleading with respect to the period covered by this report;

3.                                       Based on my knowledge, thefinancial statements, and other financial information included in this  report, fairly present in all materialrespects the financial condition, results of operations and cash flows of theregistrant as of, and for, the periods presented in this report;

4.                                       The registrant’s othercertifying officer and I are responsible for establishing and maintainingdisclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) and internal control over financial reporting (as defined inExchange Act Rules 13a-15(f) and 15d-15(f) for the registrant and have:

a)              Designed such disclosure controls and procedures, orcaused such disclosure controls and procedures to be designed under oursupervision to ensure that material information relating to the registrant,including its consolidated subsidiaries, is made known to us by others withinthose entities, particularly during the period in which this report is beingprepared;

b)             Designed such internal control over financialreporting, or caused such internal control over financial reporting to bedesigned under our supervision, to provide reasonable assurance regarding thereliability of financial reporting and the preparation of financial statementsfor external purpose in accordance with generally accepted accountingprinciples;

c)              Evaluated the effectiveness of the registrant’sdisclosure controls and procedures and presented in this report our conclusionsabout the effectiveness of the disclosure controls and procedures, as of the endof the period covered by this report based on such evaluation; and

d)             Disclosed in this report any change in the registrant’sinternal control over financial reporting that occurred during the registrant’smost recent fiscal quarter (the registrant’s fourth fiscal quarter in the caseof an annual report) that has materially affected, or is reasonably likely tomaterially affect, the registrant’s internal control over financial reporting;and

5.                                       The registrant’s othercertifying officer and I have disclosed, based on our most recent evaluation ofinternal control over financial reporting, to the registrant’s auditors and theaudit committee of registrant’s board of directors (or persons performing theequivalent functions):

a)              All significant deficiencies and material weaknessesin the design or operation of internal control over financial reporting whichare reasonably likely to adversely affect the registrant’s ability to record,process, summarize and report financial information; and

b)             Any fraud, whether or not material, that involvesmanagement or other employees who have a significant role in the registrant’sinternal control over financial reporting.

 
| DATE:  | **November 8, 2007** | BY:    | /s/ Sheldon  Hoffman            |
|--------|----------------------|--------|--------------------------------------|
|   |                 |   | Sheldon Hoffman                      |
|   |                 |   | Chief Executive Officer and Director |

 

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