Exhibit 99.1

                            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 annual report of Avitar,  Inc. (the  "Company") on
Form  10-QSB  for the  period  ending  March 31, 2003 as  filed  with  the
Securities and Exchange  Commission on the date hereof (the "Report"),  I, Peter
P. Phildius,  Chief Executive Officer of the Company,  and I, Jay C. Leatherman,
Jr., Chief Financial  Officer of the Company certify,  pursuant to 18 U.S.C. ss.
1350, as adopted  pursuant to ss. 906 of the  Sarbanes-Oxley  Act of 2002, to my
knowledge, that:

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

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

Date: May 14, 2003


                                /s/ Peter P. Phildius_
                                Peter P. Phildius
                                Chief Executive Officer



                                /s/ Jay C. Leatherman, Jr.
                                Jay C. Leatherman, Jr.
                                Chief Financial Officer
                                (Principal Financial and Accounting
                                Officer), Secretary