Exhibit 32.2


CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION
     906 OF THE SARBANES-OXLEY ACT OF 2002

In   connection  with the Quarterly  Report of Aearo Company I (the  'Company'),
     on Form  10-Q  for the  period  ended  June 30,  2005,  as  filed  with
     theSecurities and Exchange Commission on the date hereof (the 'Report'), I,
     Jeffrey S. Kulka, Chief Financial Officer of the Company, certify, pursuant
     to 18 U.S.C.  Section  1350,  as adopted  pursuant  to  Section  906 of the
     Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)  The Report fully complies with the  requirements  of section 13(a) or 15(d)
     of the Securities Exchange Act of 1934, as amended; and

(2)  The information  contained in the Report fairly  presents,  in all material
     respects, the financial condition and results of operations of the Company.


                                                     /s/ Jeffrey S. Kulka
                                                     Jeffrey S. Kulka
                                                     Senior Vice President,
                                                     Chief Financial Officer
                                                     and Secretary
August 15, 2005

A signed written statement required by Section 906 has been provided to Aearo
Company I and will be retained by Aearo Company I and furnished to the
Securities and Exchange Commission and its staff upon request.