EXHIBIT 31.1

                  OFFICER'S CERTIFICATE PURSUANT TO SECTION 302

I, Robert Legnosky, certify that:

      1. I have  reviewed  this form 10-Q for the quarter ended June 30, 2004 of
Celerity Systems, Inc.;

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

      3. Based on my knowledge,  the financial  statements,  and other financial
information included in this report, fairly present in all material respects the
financial condition,  results of operations and cash flows of the small business
registrant as of, and for, the periods presented in this report;

      4. The registrant's other certifying  officer(s) and I are responsible for
establishing and maintaining  disclosure  controls and procedures (as defined in
Exchange Act Rules 13a-15(e) and 15d-15 (e)) for the registrant and have:

            (a) Designed such disclosure controls and procedures, or caused such
disclosure  controls and  procedures to be designed  under our  supervision,  to
ensure that  material  information  relating to the  registrant,  including  its
consolidated subsidiaries,  is made known to us by others within those entities,
particularly during the period in which this report is being prepared;

            (b) Omitted;

            (c)  Evaluated  the  effectiveness  of the  registrant's  disclosure
controls and procedures and presented in this report our  conclusions  about the
effectiveness  of the disclosure  controls and procedures,  as of the end of the
period covered by this report based on such evaluation; and

            (d) Disclosed in this report any change in the registrant's internal
control  over  financial  reporting  that  occurred  during  the small  business
registrant's most recent fiscal quarter (the small business  registrant's fourth
fiscal quarter in the case of an annual report) that has materially affected, or
is reasonably  likely to materially  affect,  the registrant's  internal control
over financial reporting; and

      5. The  registrant's  other  certifying  officer(s) and I have  disclosed,
based  on  our  most  recent  evaluation  of  internal  control  over  financial
reporting,  to  the  registrant's  auditors  and  the  audit  committee  of  the
registrant's   board  of  directors  (or  persons   performing   the  equivalent
functions):

            (a) All  significant  deficiencies  and material  weaknesses  in the
design or  operation  of internal  control over  financial  reporting  which are
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 involves management or
other employees who have a significant role in the registrant's internal control
over financial reporting.

Date:    August 23, 2004                     By: /s/ Robert Legnosky
                                                --------------------
                                                 Robert Legnosky
                                                 President and
                                                 Interim Chief Financial Officer

The introductory  paragraph of the Section 302 certification  that refers to the
certifying  officers'  responsibility for establishing and maintaining  internal
control over  financial  reporting for the company,  as well as paragraph  4(b),
have been omitted in accordance  with Release No. 33-8238 (June 5, 2003) because
the compliance  period has been extended for registrants  until the first fiscal
year ending on or after April 15, 2005.


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