EXHIBIT 32.1

                            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 Quarterly Report of MISONIX, INC. (the "Company") on
Form 10-Q/A for the period ending December 31, 2002 as filed with the Securities
and  Exchange  Commission  on  the  date  hereof  (the  "Report"), I, Michael A.
McManus,  Jr.,  Chief  Executive 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,  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  result of operations of the
Company.

/s/  Michael  A.  McManus,  Jr.
Chief  Executive  Officer
September  18,  2003




A  signed  original  of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears  in  typed  form within the electronic version of this written statement
required by Section 906, has been provided to MISONIX, INC. and will be retained
by  MISONIX, INC. and furnished to the Securities and Exchange Commission or its
staff  upon  request.