**EXHIBIT      31.2**

**CERTIFICATIONS**

| 1. | I                have reviewed this quarterly report on Form 10-Q of MISONIX,                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                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)) [*** Omitted                pursuant to extended compliance period] 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 pursuant to extended                compliance                period];                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|                                 |                                                                                                                                                                                                                                                                                                                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
|                                 | (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 registrant’s most recent                  fiscal quarter (the 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.                                                                                                                                                                                                                                                                                                           |

|   | /s/ Richard                Zaremba                                                              |
|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | Richard                  Zaremba                                                                                                                                                                                                                                                                                                 |
|   | Senior                    Vice President, Chief Financial Officer,                                                                                                                                                                                                                                                               |
|   | Treasurer                  and Secretary                                                                                                                                                                                                                                                                                         |