<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>biomerica_10qex99-1.txt
<TEXT>
<PAGE>

Exhibit 99.1

                    CERTIFICATION OF CHIEF EXECUTIVE OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Zackary S. Irani, certify that:

1.   I have reviewed this quarterly report on Form 10-QSB of Biomerica, Inc.;

2.   Based on my knowledge, this quarterly 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 quarterly report, fairly present in all
     material respects the financial condition, results of operations and cash
     flows of the registrant as of, and for, the periods presented in this
     quarterly report;

4.   The registrant's other certifying officer 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 we
     have:

a)   designed such disclosure controls and procedures 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 quarterly report is being
     prepared;

b)   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

(c)  disclosed in this report any change in the registrant's internal control
     over financial reporting that occurred during the registrant's most recent
     fiscal quarter 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 and I have disclosed, based on
     our most recent evaluation of our internal control over financial
     reporting, to the registrant's auditors and the audit committee of
     registrant's board of directors (or persons performing the equivalent
     functions):

a)   all significant deficiencies in the design or operation of internal
     controls 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
     controls; and

     Date:  October 15, 2004

     /s/ Zackary S. Irani
     Chief Executive Officer


<PAGE>

                    CERTIFICATION OF CHIEF EXECUTIVE OFFICER
                                   PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Janet Moore, certify that:

1.   I have reviewed this quarterly report on Form 10-QSB of Biomerica, Inc.;

2.   Based on my knowledge, this quarterly 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 quarterly report, fairly present in all
     material respects the financial condition, results of operations and cash
     flows of the registrant as of, and for, the periods presented in this
     quarterly report;

4.   The registrant's other certifying officer 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 we
     have:

a)   designed such disclosure controls and procedures 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 quarterly report is being
     prepared;

b)   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 registrant's most recent
     fiscal quarter 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 and I have disclosed, based on
     our most recent evaluation of our internal control over financial
     reporting, to the registrant's auditors and the audit committee of
     registrant's board of directors
    (or persons performing the equivalent functions):

a)   all significant deficiencies in the design or operation of internal
     controls 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
     controls; and

Date:  October 15, 2004

     /s/ Janet Moore
     Chief Financial Officer


<PAGE>


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

I, Zackary S. Irani, certify that the Quarterly Report on Form 10-QSB for the
fiscal Quarter ended August 31, 2004, fully complies with the requirements in
Sections 13(a) Or 15(d) of the Securities Exchange Act of 1934, and that the
information contained In such quarterly report fairly presents, in all material
respects, the financial Condition and results of operations of Biomerica, Inc.
for the periods being presented.

                                                     /s/ Zackary S. Irani
                                                     ---------------------------
                                                       Zackary S. Irani
                                                       Chief Executive Officer

October 15, 2004


<PAGE>


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

I, Janet Moore, certify that the Quarterly Report on Form 10-QSB for the fiscal
Quarter ended August 31, 2004, fully complies with the requirements in Sections
13(a) Or 15(d) of the Securities Exchange Act of 1934, and that the information
contained In such quarterly report fairly presents, in all material respects,
the financial Condition and results of operations of Biomerica, Inc. for the
periods being presented.

                                                     /s/ Janet Moore
                                                     --------------------------
                                                       Janet Moore
                                                       Chief Financial Officer

October 15, 2004


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