QuestAir to Supply System to Recover Methane From Biogas at a Swiss Anaerobic Digester

FOR: QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL: QAR

January 24, 2007

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Jan. 24, 2007) - QuestAir Technologies Inc.
(TSX:QAR)(AIM:QAR) announced today that it has received an order for a M-3200 PSA system to recover
pipeline grade methane from biogas generated by an anaerobic digester in Lavigny, Switzerland.

Verdesis Suisse SA has purchased QuestAir's system as part of a new plant that will recover methane
from biogas generated by the anaerobic digestion of organic wastes at the Lavigny site. The methane
recovery plant will be owned and operated by Cosvegaz S.A., a Swiss gas utility, and product methane
from the plant will be injected into the local natural gas distribution grid operated by Cosvegaz.

Jonathan Wilkinson, President and CEO of QuestAir, said: "We are extremely pleased to secure our first
sale into the European biogas market, which represents an exciting growth opportunity for QuestAir. We
have seen growing interest across the EU in the use of renewable sources of methane to supplement or
replace imported natural gas. In addition, government programs in several EU countries are promoting
the use of biogas as a carbon neutral source of compressed natural gas (CNG) transportation fuel for
busses and cars."

"QuestAir's methane recovery systems offer a compact solution of cost-effectively removing carbon
dioxide and other impurities from biogas, recovering high purity methane for high value end-uses,"
Wilkinson said.

About QuestAir M-3200

QuestAir's M-3200 purifies methane-containing gas streams such as landfill gas and anaerobic digester
gas to high purity methane, suitable for supplementing existing natural gas supplies. The M-3200's
optimized Pressure Swing Adsorption ("PSA") process and proprietary rotary valve technology deliver
higher efficiency than conventional PSA systems in a more compact, cost effective package. QuestAir's
M-3200 system can upgrade up to 300,000 cubic feet of biogas per day.

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".

Forward-Looking Statements

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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FOR FURTHER INFORMATION PLEASE CONTACT:

QuestAir Technologies Inc.
Andrew Hall
Director, Corporate Development
(604) 453-6967
Email: hall@questairinc.com
Website: www.questairinc.com

Buchanan Communications - UK Media Contact
Charles Ryland
+44 (0) 20 7466 5000

Buchanan Communications - UK Media Contact
Ben Willey
+44 (0) 20 7466 5000

Karyo Communications - Canadian Media Contact
Glen Edwards
(604) 623-3007

Canaccord Adams
Mark Ashurst
+44 207 050 6500

Canaccord Adams
Erin Needra
+44 207 050 6500

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QuestAir Technologies Inc.

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