For Immediate Release 18 December 2007

QuestAir Announces Director Purchases

VANCOUVER, B.C. – QuestAir Technologies Inc. (AIM: QAR; TSX: QAR) announced today that three Directors have acquired common shares of the company.

Two Directors, Dr. Denis Connor, Chairman, and Mr. Jonathan Wilkinson, President and Chief Executive Officer, have purchased shares through the exercise of stock options on December 17, 2007. The options had been granted in lieu of salary and bonus, and were therefore exercisable at a price of $0.001 per share.

• Dr. Connor purchased 29,703 shares bringing his total holdings, directly or indirectly, to 299,868 common shares.
• Mr. Wilkinson purchased 29,674 shares bringing his total holdings, directly or indirectly, to 131,076 common shares.

In addition, Mr. Keith D. McLeod, Director, purchased 3000 common shares on the Toronto Stock Exchange at an average price of $0.41 on December 18, 2007, bringing his total holdings, directly or indirectly, to 3000 shares.

Disclosure of the Directors dealings under this Plan is made pursuant to the rules governing the operation of AIM as established by the London Stock Exchange Plc.

About QuestAir Technologies Inc.
QuestAir Technologies, Inc. is a developer and supplier of proprietary gas purification systems for several large international markets, including existing markets such as oil refining, biogas production and natural gas processing, and emerging markets such as fuel cell power plants and fuel cell vehicle refueling stations. QuestAir is based in Burnaby, British Columbia and its shares trade on the AIM Market of the London Stock Exchange Plc. and on the Toronto Stock Exchange under the symbol “QAR”.

Certain statements in this press release may constitute ‘‘forward-looking’’ statements which involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company, or industry results, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. When used in this press release, such statements use such words as “anticipate”, “believe”, “plan”, “estimate”, “expect”, “intend”, ‘‘may’’, ‘‘will’’ and other similar terminology. These statements reflect current expectations regarding future events and operating performance and speak only as of the date of this press release. Forward-looking statements involve significant risks and uncertainties, should not be read as guarantees of future performance or results, and will not necessarily be accurate indications of whether or not such results will be achieved. A number of factors could cause actual results to differ materially from the results discussed in the forward-looking statements.

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