Creating 100% Pathogen Free Environments

April 27, 2010 — MRSA Eliminated in Youth Sports Equipment

San Francisco, California April 27, 2010.

In response to the growing need for the decontamination of sports training facilities and locker rooms from the Super Bug Methicillin-Resistant Staphylococcus Aureus, also known as MRSA, Medizone International, Inc. (MZEI.OB) is pleased to announce that it has successfully sterilized both naturally and artificially contaminated sports equipment using its highly versatile AsepticSure™ sterilization system. "The implications of these results are enormous to Medizone as the potential market for AsepticSure™ has at least quadrupled in size," stated Mr. Marshall, Medizone’s CEO.

As reported in a recent article entitled “Assessment of Athletic Facility Surfaces for MRSA in the Secondary School Setting” (Journal of Environmental Health, Feb., 2010) the authors stated that, "Methicillin-Resistant Staphylococcus Aureus (MRSA) was once largely a hospital-acquired infection, but increasingly, community-associated MRSA (CA-MRSA) is causing outbreaks among otherwise healthy people in athletic settings. Secondary school athletic trainers, student athletes, and the general student population may be at elevated risk of MRSA infection."

Part of the test program just completed by Medizone involved the evaluation of a hockey goalie’s glove used for three years by a 12-year-old Canadian boy.  The inside surface of the glove was found to be heavily contaminated with MRSA along with a number of other less deadly pathogens.

Medizone’s Director of Medical Affairs, Dr Michael Shannon stated, “Pads and team sweaters were also tested and very effectively sterilized without damaging the textiles or leather. It is noteworthy that the protocol used in gloves heavily contaminated with numerous real world pathogens needed to be adjusted significantly from the hospital protocol in order to obtain full sterilization, which demonstrates the ability of the AsepticSure™ system to meet the many varied demands in the real world through protocol changes without the need to alter the technology. This new work has lead to the development of a decontamination protocol specifically for this application which yields results consistent with those expected in hospital setting of 6 logs (99.9999%, sterilization standard) of bacterial kill. Thus, we have now demonstrated that the AsepticSure™ system is capable of cost effective hospital sterilization, locker room and sports equipment sterilization and in due course, we expect to assume a meaningful role in the bio-terrorism counter measures arena as well."

Medizone International, Inc., is a research and development company engaged in developing its AsepticSure™ System to decontaminate and sterilize hospital surgical suites, emergency rooms, intensive care units, schools and other critical infrastructure. A government variant is being developed for bio-terrorism counter measures.

This Press Release contains certain forward looking statements that involve substantial risks and uncertainties, including, but not limited to, the results of ongoing clinical studies, economic conditions, product and technology development, production efficiencies, product demand, competitive products, competitive environment, successful testing and government regulatory issues. Additional risks are identified in the company's filings made with the Securities and Exchange Commission.

Investor Relations: 415-868-0300   / web site: www.medizoneint.com

E-mail: operations@medizoneint.com

Contact:

Medizone International, Inc. (MZEI.OB)

4000 Bridgeway, Suite 401,
Sausalito, CA 94965

Telephone: 415-331-0303

Email
: operations@medizoneint.com

Investor Relations:

John Pentony

Investor Relations,
Medizone International, Inc.

Telephone: (415) 331-0202

E: j.pentony@medizoneint.com

Media Contact:

Gary Hanauer

Media Relations,
Medizone International, Inc.

Telephone: (510) 686-1238

E: GarHan@aol.com