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Company Contact                             Investor Relations Contacts
- ---------------                             -----------------------------
Michael A. McManus, Jr.                     Lippert/Heilshorn & Associates, Inc.
President and CEO                           Kim Sutton Golodetz
Misonix, Inc.                               (kgolodetz@lhai.com) (212) 838-3777
(631) 694-9555                              Bruce Voss (bvoss@lhai.com)
www.misonix.com                             (310) 691-7100
- ---------------                             www.lhai.com
                                            ------------

              MISONIX REPORTS INCREASED REVENUES AND EARNINGS FOR
                         ITS SECOND FISCAL QUARTER 2004

FARMINGDALE,  N.Y.,  JANUARY  29,  2004  MISONIX,  INC.  (NASDAQ NM: MSON) today
reported financial results for the three and six months ended December 31, 2003.
Highlights  for  the second quarter and first six months of fiscal 2004 include:

     -    Revenues  for  the  quarter ended December 31, 2003 increased 14% from
          the  prior  year  driven  by  a 27% increase in medical device product
          revenues
     -    Revenues for the six months ended December 31, 2003 increased 18% from
          the  prior year with medical device product revenues increasing by 35%
     -    Net  income increased 244% and 377% for the three and six months ended
          December  31, 2003, respectively, from the same periods in fiscal 2003
     -    Operating  earnings  increased 99% to $447,000 and 95% to $612,000 for
          the  three  and  six months, respectively, ending December 31, 2003 as
          compared to $225,000 and $314,000 for the same periods in the previous
          fiscal  year
     -    Backlog  of unfilled orders was $8.5 million, a 53% increase from that
          of  June  30,  2003

Revenues  for  the three months ended December 31, 2003 were $9.3 million, a 14%
increase  when  compared  with  $8.2 million for the same period in fiscal 2003.
The  Company  recorded  net income for the quarter of $389,000 or $.06 per fully
diluted  share,  compared  to  net  income of $113,000 or $.02 per fully diluted
share  for  the  same  period  in  fiscal 2003.  Medical device product revenues
increased  27%  to $5.1 million and laboratory and scientific revenues increased
1%  to  $4.2  million.  The  increase  in  medical  device  product revenues was
attributable to a 37% increase in therapeutic medical device product revenues to
$2.9 million and a 16% increase in diagnostic medical device product revenues to
$2.2  million.  The  increase in laboratory and scientific product revenues were
mainly attributable to a 43% increase in sales of ultrasonic laboratory products
and  a  4%  increase in sales of Labcaire's endoscopic cleaning and disinfecting
units  partially  offset  by  a  12%  decrease in fume enclosure sales and a 46%
reduction  in  wet  scrubbers  sales.



Gross profit, as a percentage of sales, increased to 42.8% for the second fiscal
quarter  of  2004  from 41.7% for the same period in the prior fiscal year.  The
increase was a result of a combination of volume efficiencies from the increased
revenues and cost reductions implemented during the prior fiscal year.

Royalty  income  for  the  three  months  ended  December  31, 2003 increased as
compared  to the same period in the prior year due to increased product sales by
US  Surgical  Corporation.

Revenues  for  the six months ended December 31, 2003 were $17.9 million, an 18%
increase  when  compared  with $15.2 million for the same period in fiscal 2003.
The  Company  recorded  net  income  for  the first six months of fiscal 2004 of
$783,000  or $.12 per fully diluted share, compared to net income of $164,000 or
$.03 per fully diluted share for the same period in fiscal 2003.  Medical device
product  revenues  increased  35%  to $9.7 million and laboratory and scientific
product  revenues  increased 3% to $8.2 million.  The increase in medical device
product  revenues  was  attributable  to  a  43%  increase in diagnostic medical
devices  revenues  to  $5.3  million  and  a  27% increase in diagnostic medical
product  revenues  to  $4.4  million.  The increase in laboratory and scientific
product  revenues  was  mainly  attributable  to  a  22%  increase in ultrasonic
laboratory  product  sales  and a 10% increase in sales of Labcaire's endoscopic
cleaning  and  disinfecting units partially offset by a 12% decrease in ductless
fume  enclosure  sales  and  a  44%  reduction  in  wet  scrubber  sales.

At  December  31, 2003, the backlog of unfilled orders was $8.5 million compared
with  $5.6 million as of June 30, 2003.  Medical device product backlog was $5.8
million  a  98%  increase and laboratory and scientific product backlog was $2.7
million,  a  1%  increase,  respectively,  from  the  prior  year.

Michael  A.  McManus,  Jr.,  President and Chief Executive Office commented, "We
continue  to  be  pleased  with  our  growth in both revenues and earnings.  Our
medical device business continues to perform above expectation and we expect our
laboratory  and  scientific  business  to  grow  especially  as  the  economic
environment  improves."

Mr.  McManus further added, "The use of ultrasound technology is becoming widely
recognized  for  its  application  to medical devices.  We continue to work with
Mentor  Corporation,  Tyco  United  States  Surgical  Corporation, Aesculap, and
Circon among other companies, to expand their product offerings using ultrasound
technology.  It has been reported that research is being done on the application
of  therapeutic ultrasound to heart, uterus and breast on a worldwide basis.  We
believe  that  more  companies  will  be  coming to Misonix for their ultrasonic
medical  devices as our expertise continues to be recognized. This is due to the
fact that we have demonstrated our capabilities to deliver ultrasound technology
to  state  of  the  art  medical  devices.  These  devices  will  continue to be
developed internally as a result of our own research and development efforts, or
in  some  cases  we  will  develop  products  requested  by  others."

Regarding guidance, the Company said it continues to expect an increase of 8-10%
in  revenues  for fiscal year 2004 and an increase in diluted earnings per share
from $0.20 to $0.22.  The increase does not include the incremental benefit from
any  development  projects  or  products.



Misonix has scheduled an investor conference call regarding this announcement to
be  held  on  Thursday,  January  29  beginning  at  4:30 p.m. Eastern Time.  To
participate in the call, please dial (888) 803-7638.  For international callers,
the number is (706) 634-1218.  Those unable to participate are invited to listen
to  a  recording  of  the  call  and  Q&A from 7:30 p.m. Eastern Time, Thursday,
January  29  through  11:59  p.m.  Eastern Time, Saturday, January 31 by dialing
(800)  642-1687  or  (706)  645-9291,  access  code  5218781.  Alternatively,
individual  investors  are  invited  to  listen  to the conference call over the
Internet.  Please  log  on  to  www.misonix.com at least 15 minutes prior to the
                                ---------------
start  of  the  call  to  register,  download  and  install  any necessary audio
software.  A webcast replay will begin shortly after the call has ended and will
be  available  for  14  days.

Forward  Looking Statements:  Statements in this news release looking forward in
time  are  made pursuant to the Safe Harbor Provisions of the Private Securities
Litigation  Reform  Act  of  1995.  Investors are cautioned that forward-looking
statements  involve  risks  and  uncertainties,  including  general  economic
conditions,  delays  and  risks  associated  with  the performance of contracts,
uncertainties  as  a result of research and development, potential acquisitions,
consumer  and  industry  acceptance,  litigation  and/or  court proceedings, and
regulatory risks including approval of pending and/or contemplated 510K filings.


                               (Tables to follow)






                                          MISONIX, INC.
                              CONSOLIDATED STATEMENTS OF OPERATIONS
                                            UNAUDITED

                                                 Three Months Ended         Six Months Ended
                                                    December 31,              December 31,
                                                  2003        2002         2003          2002
                                               -----------------------  -------------------------
                                                                         
Net sales                                      $9,296,109  $8,174,513   $17,916,007  $15,184,835

Cost of goods sold                              5,317,891   4,769,355    10,272,094    8,822,459
                                               -----------------------  -------------------------

Gross profit                                    3,978,218   3,405,158     7,643,913    6,362,376

Selling expenses                                1,121,959   1,096,960     2,078,492    2,032,563
General and administrative expenses             1,834,278   1,632,258     3,890,046    3,152,131
Research and development expenses                 575,166     476,562     1,063,646    1,015,888
Litigation (recovery) settlement expenses               -     (25,326)            -     (152,628)
                                               -----------------------  -------------------------

Total operating expenses                        3,531,403   3,180,454     7,032,184    6,047,954
                                               -----------------------  -------------------------

Income from operations                            446,815     224,704       611,729      314,422

Total other income                                246,066       5,221       758,015       20,332
                                               -----------------------  -------------------------

Income before minority interest and
income taxes                                      692,881     229,925     1,369,744      334,754


Minority interest in the net income (loss) of
consolidated subsidiaries                          14,125     (40,553)       28,151      (33,836)
                                               -----------------------  -------------------------

Income before income taxes                        678,756     270,478     1,341,593      368,590

Income tax expense                                289,470     157,437       558,565      204,392
                                               -----------------------  -------------------------

Net income                                     $  389,286  $  113,041   $   783,028  $   164,198
                                               =======================  =========================

Net income per share-basic                     $     0.06  $     0.02   $      0.12  $      0.03
                                               =======================  =========================

Net income per share-diluted                   $     0.06  $     0.02   $      0.12  $      0.03
                                               =======================  =========================

Weighted average common shares-basic            6,655,865   6,511,188     6,655,865    6,308,526
                                               =======================  =========================

Weighted average common shares-diluted          6,732,540   6,598,096     6,729,060    6,554,421
                                               =======================  =========================






                                          MISONIX, INC.
                                   CONSOLIDATED BALANCE SHEETS


                                                             DECEMBER 31, 2003    JUNE 30, 2003
                                                                 Unaudited           Audited
                                                            -------------------  ---------------
                                                                           
ASSETS
- ------
Current Assets:
  Cash and cash equivalents                                 $        4,915,875   $    2,279,869
  Accounts receivable, net of allowance
    for doubtful accounts of $747,199 and
    $644,157, respectively                                           6,383,146        7,844,399
  Inventories                                                        9,499,832        8,979,472
  Deferred income taxes                                                605,313          477,580
  Prepaid expenses and other current assets                            654,560          983,523
                                                            -------------------  ---------------
Total current assets                                                22,058,726       20,564,843

Property, plant and equipment, net                                   3,769,931        3,574,207
Deferred income taxes                                                  459,677          862,690
Goodwill                                                             4,473,713        4,473,713
Other assets                                                           328,960          319,136
                                                            ------------------------------------
Total assets                                                $       31,091,007   $   29,794,589
                                                            ====================================

LIABILITIES AND STOCKHOLDERS' EQUITY
- ------------------------------------
Current liabilities:
  Revolving credit facilities                                        1,258,477          704,669
  Accounts payable                                                   3,091,945        3,563,208
  Accrued expenses and other current liabilities                     1,664,524        2,002,154
  Income tax payable                                                   416,651           47,453
  Current maturities of long-term debt and capital lease
    obligations                                                        297,652          279,554
                                                            -------------------  ---------------
Total current liabilities                                            6,729,249        6,597,038

Long-term debt and capital lease obligations                         1,304,031        1,235,362

Deferred income                                                        394,875          356,076

Minority interest                                                      291,602          263,450

Stockholders' equity:
  Capital stock, $0.01 par - shares authorized 10,000,000;
    6,733,665 issued and 6,655,865 outstanding                          67,337           67,337
  Additional paid-in capital                                        22,712,511       22,712,511
  Retained deficit                                                    (270,456)      (1,053,484)
  Treasury stock, 77,800 shares                                       (412,424)        (412,424)
  Accumulated other comprehensive income                               274,282           28,723
                                                            ------------------------------------
Total stockholders' equity                                          22,371,250       21,342,663
                                                            ------------------------------------

Total liabilities and stockholders' equity                  $       31,091,007   $   29,794,589
                                                            ====================================