KleenAir Gets New Patent for Aqueous Ammonia NOx Reduction

IRVINE, Calif.--March 3, 2005--KleenAir Systems Inc. (OTCBB:KAIR) announced today that during February the US Patent office issued Patent No. US 6,852,292 covering the use of aqueous ammonia injection to reduce NOx emissions from the exhaust gases of combustion engines.

Until now, the company's issued patents have focused on the use of ammonia gas as the most efficient and cost-effective means of reducing NOx emissions through a technology called Selective Catalytic Reduction (SCR), in which the company is the innovator for automotive retrofit applications. This technology requires the use of a pressurized container of ammonia gas.

The new patent extends the technology to include ammonia dissolved in water, very much like household cleaners found in almost every home and supermarket. This solution can be bottled in non-pressurized plastic containers to be refilled or replaced similar to window-washer cleaning fluid used in automobiles. For mass volume application for passenger vehicles the company believes this version of its technology to be more user-friendly for the average car owner.

In Europe, over 50 percent of the current production of automobiles is now diesel-powered, amounting to over 7 million new vehicles annually. The number of diesel vehicles in use throughout Europe is close to 100 million. In the United States, while diesel is primarily used for heavy duty trucks and buses, off-road construction equipment, stationary generators and marine applications, the major passenger car manufacturers are now planning to incorporate SCR technology in future offerings, particularly of pick-up trucks and SUVs.

"This patent is the result of several years of patient Research and Development at our facilities in California," said Lionel Simons, president of KleenAir Systems Inc., "and we anticipate that it will significantly broaden the market appeal of our technology in the years ahead." About KleenAir Systems Inc.

KleenAir is at the cutting edge of automotive emission reduction technology including Selective Catalytic Reduction (SCR), Diesel Particulate Filters, Diesel Oxidizing Catalysts and advanced catalytic technology that significantly reduces nitrogen oxides, carbon monoxide, hydrocarbon and particulates. These pollutants have been shown to be a major contributor to heart and lung disease.

Safe Harbor ActNotice: This release may contain forward-looking statements that involve risks and uncertainties, including without limitation, acceptance of the company's products, increased levels of competition, product and technological changes, the company's dependence upon financing and third-party suppliers, and other risks detailed from time to time in the company's federal filings, annual report, offering memorandum, or prospectus. Specifications are subject to change without notice.

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