ExxonMobil and QuestAir Technologies Address Increased Hydrogen Needs in the Refining Industry

QuestAir has been working with EMRE since 2003 to develop thisadvanced, rapid cycle pressure swing adsorption ("RCPSA") system,marketed as the H-6200, for use in oil refineries and petrochemicalplants. A prototype plant test is planned at an ExxonMobil refinerybeginning the second half of 2006.

Jonathan Wilkinson, President and CEO of QuestAir, said, "Thismarketing agreement is a significant milestone in thecommercialization of the advanced hydrogen purifier that QuestAir isdeveloping in collaboration with EMRE. We expect to begin jointlymarketing this product to refineries immediately."

The multi-year agreement signed today covers the marketing of theH-6200 hydrogen RCPSA to third party customers in the oil refiningindustry. Under the terms of the agreement, EMRE will lead themarketing effort to refinery customers. QuestAir will support EMRE'smarketing efforts, and will be the contracting party responsible formanufacturing, supplying and commissioning of plants sold to refinerycustomers.

The commercial gain from the sale of the product will be sharedbetween QuestAir and EMRE based on the contributions made by eachparty towards the research, development and commercialization of theproduct.

About the H-6200

The H-6200 hydrogen purifier incorporates QuestAir's proprietaryRapid-Cycle Pressure Swing Adsorption ("RCPSA") technology, whichoperates at significantly higher cycle speeds than conventional PSAsystems. This results in a direct reduction in the size and cost ofthe equipment required to purify a given volume of product gas. TheH-6200 will be marketed in the oil refining industry as a compactsolution for hydrogen recovery, helping refineries address the growingdemand for hydrogen to process increased supplies of heavy, sour crudeoil.

About ExxonMobil Research and Engineering Company

EMRE is the downstream research and engineering arm of Exxon MobilCorporation (NYSE:XOM), a leading global oil, natural gas, andpetrochemicals company whose subsidiaries have operations in nearly200 countries and territories. Additional information regardingExxonMobil and technologies it licenses can be found athttp://www.exxonmobil.com/refiningtechnologies.

About QuestAir Technologies Inc.

QuestAir Technologies Inc. is a developer and supplier ofproprietary gas purification systems for several large internationalmarkets, including existing markets such as oil refining, biogasproduction and natural gas processing, and emerging markets such asfuel cell power plants and fuel cell vehicle refuelling stations. TheCompany has joint development agreements with ExxonMobil Research andEngineering Company and Shell Hydrogen, and a collaboration withFuelCell Energy. QuestAir is based in Burnaby, British Columbia andits shares trade on the AIM Market of the London Stock Exchange Plc.and on the Toronto Stock Exchange under the symbol "QAR."

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