TSO3 Sells Another Ozone Sterilizer in the US

April 24, 2006

Québec City, April 24, 2006 – TSO3 Inc. (“TSO3”) (TSX: TOS) announces another firm sale of its 125L Ozone Sterilizer to a hospital system, which operates more than 70 care-giving sites, including 6 acute care hospitals and 2 outpatient care campuses, as well as numerous clinics, nursing centers, and hospice.

This hospital system operates its region’s only Level I Trauma Center, and treats over 2500 trauma patients every year. It has been ranked in the top 35 hospitals in the U.S. by U.S. News & World Report for its programs in urology and cardiac care/cardiac surgery. It was also one of the first hospitals in the country to provide organ transplantation.

“This hospital system is nationally regarded for its commitment to patient and worker safety, as evidenced by the safety awards it has received from the JCAHO (Joint Council on Accreditation of Healthcare Organizations) and the American Hospital Association,” said Jocelyn Vezina, CEO of TSO3 Inc. “This is exactly the type of healthcare system that we anticipated would become early adopters of our technology, which provides an increased margin of safety for workers, patients and the outside environment. We are very happy with the pace at which the sales are unfolding, which is what we expected”.

“The client will be locating the 125L in its newest hospital, which is only four years old,” said Ann Hewitt, Vice President, Sales and Marketing at TSO3 Inc. “The 125L Ozone sterilizer will complement and complete the ’sterilization center’ of one of this system’s hospital, which will now include ethylene oxide, steam, hydrogen peroxide and ozone.”

“Our biggest concerns are to reduce operational expenses and to simplify our sterilization processes, as we have a huge turnover of instruments. Installing the new ozone process will resolve these concerns,” according to the Central Sterilization Director, Day-Team Leader, and the Project Manager working in the Central Sterilization Department at the hospital.


About TSO3

TSO3 Inc. is located in Québec City, Québec, Canada, and was founded in 1998. The Company’s mission is to develop and market innovative and comprehensive sterilization solutions.

TSO3 has perfected an innovative sterilization process using ozone as the sterilizing agent. The first product based on this technological platform is the 125L Ozone Sterilizer, which is intended for hospital sterilization units. The 125L – named after its 125-litre/4.3-cubic-foot capacity – was designed to sterilize heat and moisture-sensitive surgical and diagnostic devices which are expensive and in high demand from the surgical suite. The ozone sterilization process is a safe, efficacious, fast and cost-effective response to evolving sterilization needs.

The 125L Ozone Sterilizer by TSO3 has been cleared for commercialization by Health Canada and by the U.S. Food and Drug Administration (FDA). TSO3 has sold its first sterilizer in Q4 2005.

TSO3 currently has 58 employees, 18 of whom work in the sales and marketing team.

The statements in this release and oral statements made by representatives of TSO3 relating to matters that are not historical facts (including, without limitation, those regarding the timing or outcome of any financing undertaken by TSO3) are forward-looking statements that involve certain risks, uncertainties and hypotheses, including, but not limited to, general business and economic conditions, the condition of the financial markets, the ability of TSO3 to obtain financing on favourable terms and other risks and uncertainties.

The TSX has neither approved nor disapproved the information contained herein and accepts no responsibility for it.

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Source: TSO3 Inc.

Information:
Caroline Côté
Director, Corporate Communications
and Investor Relations
Phone: (418) 651-0003, Ext. 237
Email: ccote@tso3.com
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