FOR:  QUESTAIR TECHNOLOGIES INC.

TSX, AIM SYMBOL:  QAR

May 15, 2008

QuestAir Reports Second Quarter 2008 Results

BURNABY, BRITISH COLUMBIA--(Marketwire - May 15, 2008) - QuestAir Technologies Inc. ("QuestAir" or
"the Company") (TSX:QAR)(AIM:QAR) reported today its unaudited financial and operational results
for the second quarter of fiscal 2008, ended March 31, 2008. All amounts are in Canadian dollars
unless otherwise noted.

Second Quarter Highlights

- During the second quarter, the testing of the prototype H-6200 hydrogen purifier (the "prototype
plant") at an ExxonMobil refinery in France was successfully completed. The Company believes that
QuestAir and ExxonMobil Research & Engineering ("EMRE") have reached the stage that they can take
the H-6200 hydrogen purifier to the refinery market.

- On March 3, 2008, the Company announced that it had signed an agreement valued at $6.3 million
with EMRE to allow for the further development and commercialization of QuestAir's rapid-cycle
pressure swing adsorption ("PSA") technology. Under the agreement, EMRE will pay QuestAir $6.3
million over two years in order to advance the commercialization of the H-6200 hydrogen purifier
and progress development in the field of on-board reforming of liquid hydrocarbon fuels to
hydrogen for mobile fuel cell applications.

- In conjunction with the announcement of the new agreement with EMRE, QuestAir announced revised
financial guidance for fiscal 2008 and cost saving measures to better utilize its cash resources
and to further improve its financial outlook. Recognized revenue for fiscal 2008 is now expected
to be in the range of $11 million to $12 million, compared to guidance of $9 million to $10
million provided by management on December 12, 2007. Cash used in operations and capital
expenditures for fiscal 2008 is expected to be in the range of $6.5 million to $7.5 million,
compared to prior guidance of less than $8 million.

- Coincident with issuing the revised guidance, QuestAir announced measures to reduce its
operating expenses. The reorganization, which included the elimination of 13 full time positions,
has been completed and is expected to result in annualized savings of $1.25 million. QuestAir
recognized a restructuring charge of approximately $450,000 during the quarter ending March 31,
2008 as a result of the reorganization.

- During the quarter, the Company announced that it had received an order valued at approximately
$1 million for an H-3100 hydrogen PSA system from Iwatani International Corporation, Japan's
leading supplier of merchant hydrogen. The PSA will be used in a new hydrogen recovery project in
Japan.

- The Company also announced that it signed an agreement to supply its methane purification
products to Verdesis Suisse SA ("Verdesis"), a leading European supplier of integrated plants that
produce renewable pipeline or vehicle fuel grade methane from biogas. Under the terms of the
supply agreement, QuestAir's methane PSA systems will be integrated into Verdesis' biogas
enrichment plants. To date, QuestAir has announced contracts to supply its M-3200 PSAs to four
Verdesis projects in Switzerland which upgrade biogas for injection into the natural gas grid.

- Revenue was $2,298,448 for the quarter, increased by $1,425,702, or 163% from $872,746 for the
same period in fiscal 2007. Revenue for the half year was $3,866,373, increased by $1,350,151, or
54% from $2,516,222 for the same period last year.

- QuestAir ended the second quarter with its highest sales order backlog since its inception. At
March 31, 2008 sales order backlog was $16,022,374, increased by $5,881,808, or 58% from
$10,140,566 at December 31, 2007.

- Cash used by operations and capital requirements was $2,166,074 for the quarter, increased by
$956,377, or 79% from $1,209,697 for the same period in fiscal 2007. Cash used by operations and
capital requirements for the half year was $4,992,926, a decrease of 6% or $321,324 from
$5,314,250 for the same period in fiscal 2007.

- Net loss was $2,057,403 ($0.04 per share) for the quarter, decreased by $2,587,115, or 56% from
$4,644,518 for the same period in fiscal 2007. Net loss for the half year decreased to $4,447,879
($0.08 per share) from $6,869,183 ($0.13 per share) for the same period in 2007.

- Subsequent to quarter end, QuestAir announced the closing of an underwritten offering of
subscription receipts for gross proceeds of $9 million. Each subscription receipt is automatically
exchangeable into a unit consisting of one common share and one common share purchase warrant upon
receipt of shareholder and listing approvals, which are expected to be obtained on or before June
17, 2008.

Jonathan Wilkinson, President and CEO of QuestAir, said: "We made notable progress on many fronts
during the quarter. Field testing of the H-6200 prototype plant was successfully completed in
March. The unit demonstrated its ability to effectively recover hydrogen from refinery gas streams
and return purified hydrogen for plant applications. The operating performance and robustness of
the prototype plant under various conditions bode well for future sales of the H-6200 hydrogen
purifier."

"On the commercial front, our gross margin returned to more normal levels, now that revenue from
the prototype plant has been fully recognized. In addition, we ended the quarter with record sales
order backlog, owing to the new engineering service contract we signed with EMRE. This contract
will allow us to further reduce our R&D expenses, which is one of the key operating costs of the
Company. The funding under this program will also further reduce our cash burn going forward,"
Wilkinson said.

"Also during the quarter, we signed a supply agreement with Verdesis covering the European biogas
market. We are pleased to formalize our relationship with Verdesis, and we expect that the new
agreement will drive further sales growth in the European marketplace."

"Earlier this week, we announced the closing of an underwritten offering of subscription receipts,
raising gross proceeds of $9 million. The proceeds are currently being held in escrow pending
receipt of shareholder and listing approval in accordance with regulatory requirements, and we
expect to receive such approval on June 16, 2008.  We are very pleased to have completed this
offering under such challenging market conditions. These funds will strengthen our balance sheet,
and allow us to pursue the growth initiatives that we have outlined in the biomethane, refinery
and industrial hydrogen markets." Full details of the offering can be found in the final short
form prospectus at www.sedar.com.

Outlook

Commenting on the outlook for the remainder of fiscal 2008, Wilkinson said:

"Our priorities for the next few months include continuing to expand and grow our biomethane gas
processing business, working to secure the first commercial order of an H-6200 hydrogen purifier,
and further reducing our operating costs and cash burn."

"We are continuing our efforts to increase our penetration in the biomethane market. In addition
to progress in the European marketplace, we are seeing growing interest in and development of the
North American biogas market. Subsequent to quarter end, we announced that we will be supplying an
M-3200 for a biomethane to vehicle fuel project in California. The project will be integrated by
Phase 3 Renewables LLC. This is the third sale we have made to Phase 3 for North American biogas
projects."

"Now that the field test of the H-6200 hydrogen purifier has been completed, EMRE and QuestAir can
use the data from the prototype test to market the H-6200 to both ExxonMobil and third party
refineries. These activities are expected to support our objective of securing the first
commercial order for an H-6200 hydrogen purifier during this fiscal year."

"The combination of the cost-cutting measures undertaken in March and the new EMRE engineering
service contract are expected to result in a considerable improvement in our financial performance
over the second half of the fiscal year. As was announced in March, we now expect recognized
revenue for the full fiscal year to be in the range of $11 to $12 million, up from $9 to $10
million, and cash used in operations and capital expenditures to be in the range of $6.5 to $7.5
million compared to less than $8 million."

Q2 2008 Financial Results

Operating Results

The following table provides a breakdown of QuestAir's revenues from the sale of gas purification
systems and engineering service contracts for the reported periods:

/T/

--------------------------------------------------------------------------
(Unaudited)        Three months ended March 31,  Six months ended March 31,
                              2008        2007            2008        2007
--------------------------------------------------------------------------
Gas purification
 systems                 1,348,139     857,708       2,710,950   2,280,553
Engineering
 service contracts         950,309      15,038       1,155,423     235,669
--------------------------------------------------------------------------
Total revenue            2,298,448     872,746       3,866,373   2,516,222
--------------------------------------------------------------------------

/T/

Total recognized revenue for the second quarter of fiscal 2008 increased to $2,298,448 compared to
$872,746 for the same period in fiscal 2007. Total recognized revenue for the half year was
$3,866,373 compared to $2,516,222 for the same period in fiscal 2007. Revenue from gas
purification systems increased by $490,431 for the quarter and $430,397 for the half year, and
revenue from engineering service contracts increased by $935,271 for the quarter and $919,754 for
the half year compared to the same periods in fiscal 2007. This increase in revenue reflects
higher sales order backlog for the Company compared to the prior periods.

Fluctuations in recognized revenue and the receipt of new sales orders are to be expected in the
industrial markets that the Company currently serves. In addition, the timing of receipt of new
engineering service contracts can vary from year to year. Accordingly, management believes that
recognized revenue and changes in sales order backlog should be monitored together to determine
the strength of its commercial operations.

QuestAir's sales order backlog is defined as future revenue from signed contracts that have not
yet been recognized as revenue. The following table provides an analysis of the changes in sales
order backlog for the three and six months ended March 31, 2008.

/T/
--------------------------------------------------------------------------
(Unaudited)                      For the three months ended March 31, 2008
                                           Gas   Engineering
                                  Purification       Service
                                       Systems     Contracts         Total
--------------------------------------------------------------------------
Opening Balance                      8,143,859     1,996,707    10,140,566
 Bookings                            1,084,749     6,350,000     7,434,749
 Revenue                            (1,348,139)     (950,309)   (2,298,448)
 Adjustments(1)                        510,169       235,338       745,507
--------------------------------------------------------------------------
Ending Balance                       8,390,638     7,631,736    16,022,374
--------------------------------------------------------------------------
--------------------------------------------------------------------------


--------------------------------------------------------------------------
(Unaudited)                        For the six months ended March 31, 2008
                                           Gas   Engineering
                                  Purification       Service
                                       Systems     Contracts         Total
--------------------------------------------------------------------------
Opening Balance                      8,954,635     2,099,130    11,053,765
 Bookings                            1,595,058     6,457,200     8,052,258
 Revenue                            (2,710,950)   (1,155,423)   (3,866,373)
 Adjustments(1)                        551,895       230,829       782,724
--------------------------------------------------------------------------
Ending Balance                       8,390,638     7,631,736    16,022,374
--------------------------------------------------------------------------
--------------------------------------------------------------------------

/T/

(1) Includes adjustments for fluctuations in foreign currency exchange rates.

The total sales order backlog increased by $5,881,808 or 58%, during the second quarter of fiscal
2008, as the dollar value of new bookings exceeded revenue recognized in the quarter. Included in
bookings during the quarter is a new agreement valued at $6,350,000 with EMRE to allow for the
further development and commercialization of the Company's rapid-cycle PSA technology. Management
expects that 45 to 50% of the sales order backlog as of March 31, 2008 will be recognized as
revenue by September 30, 2008, with the balance being recognized in future fiscal years.

The following table provides a calculation of gross profit for the reported periods:

/T/

-------------------------------------------------------------------------
(Unaudited)       Three months ended March 31,  Six months ended March 31,
                             2008        2007            2008        2007
-------------------------------------------------------------------------
Sales                   2,298,448     872,746       3,866,373   2,516,222
Cost of goods sold      1,256,753   2,244,476       2,576,489   3,604,545
-------------------------------------------------------------------------
Gross Profit            1,041,695  (1,371,730)      1,289,884  (1,088,323)
Gross Margin (%)             45.3%     (157.2%)          33.4%      (43.3%)
-------------------------------------------------------------------------

/T/

There was a significant increase in gross margin for the quarter and half year ended March 31,
2008 compared to the same period in fiscal 2007. Low gross margins in the relevant 2007 periods
were the result of losses related to the prototype plant that was sold to an ExxonMobil refinery.
Revenue from the prototype plant was fully recognized at the end of the first quarter of fiscal
2008, allowing the gross margin to return to more normal levels in the quarter ended March 31,
2008. In any given quarter, gross margins fluctuate depending on the mix of revenues from
engineering service contracts, which tend to produce higher margins, and commercial equipment.
Nevertheless, management expects the current year to date gross margin to be more in line with
expected gross margin for the balance of the fiscal year.

The gross Research and Development ("R&D") expenditures, offsetting government funding and the
resulting net R&D expenditures for the relevant periods, were as follows:

/T/
--------------------------------------------------------------------------
(Unaudited)        Three months ended March 31   Six months ended March 31,
                              2008        2007            2008        2007
--------------------------------------------------------------------------
Gross R&D Expenditure      933,699   1,347,995       1,889,563   2,735,637
Less: Government Funding         -           -               -    (384,565)
--------------------------------------------------------------------------
Net R&D Expenditure        933,699   1,347,995       1,889,563   2,351,072
--------------------------------------------------------------------------

/T/

The 31% reduction in gross R&D expenditures for the quarter and half year ended March 31, 2008
compared to the same periods in fiscal 2007 was due to a reduction in the level of R&D activities
in the current year, reflecting the Company's shift towards commercial activities.

This is the first fiscal year that operations appears as a caption on QuestAir's financial
statements, and is the result of the restructuring undertaken in the prior fiscal year to increase
resources dedicated to commercial activities and to reduce R&D expenditures. Consistent with the
Company's accounting policy, comparative amounts have been reclassified, where necessary to
conform to the presentation adopted in the current fiscal year. Included in operations are
expenses related to supply chain management, shipping and receiving, quality management and non-
development related engineering activities. Operations expenses were $430,189 for the second
quarter of fiscal 2008, an increase of 78% from $242,093 for the same period in fiscal 2007. For
the half year ended March 31, 2008, operations expenses were $867,807, increased by 63% compared
to $532,415 for the same period in fiscal 2007. The increase in operating expenses is primarily
due to the addition of human resources to the department.

Other operating expenses include general and administrative ("G&A"), sales and marketing, and
amortization expenses. Total other operating expenses increased $187,639 or 11% to $1,856,706 in
the quarter and $158,110 or 5% to $3,317,871 for the half year ended March 31, 2008 compared to
the same periods in fiscal 2007. G&A expenses increased due to a restructuring charge of
approximately $450,000 being incurred in the most recent quarter. This was offset by reductions in
both amortization and sales and marketing expenses compared to the prior periods.

Other income was $121,496 for the second quarter of fiscal 2008 compared to other expense of
$13,633 in the same period in fiscal 2007. For the half year ended March 31, 2008 other income was
$337,478 compared to $262,388 for the same period in fiscal 2007. Lower interest income was offset
by increased foreign exchange gains in the current quarter and half year compared to the same
periods in fiscal 2007.

Net loss for the quarter ended March 31, 2008 was $2,057,403 ($0.04 per share) compared to
$4,644,518 ($0.09 per share) for the same period in fiscal 2007. Net loss for the half year ended
March 31, 2008 was $4,447,879 ($0.08 per share) compared to $6,869,183 ($0.13 per share) for the
same period in fiscal 2007. The decrease in the net loss for the quarter and half year was a
result of increased gross profits compared to the same periods in fiscal 2007.

Capital expenditures net of government funding and proceeds on sale ("Net CAPEX"), for the second
quarter of fiscal 2008 was $86,788 compared to $99,448 for the same period in fiscal 2007. Net
CAPEX for the half year ended March 31, 2008 was $240,581 compared to $360,482 for the same period
in fiscal 2007. It is expected that capital expenditures will fluctuate from quarter to quarter
depending on the requirements of specific product development programs and administrative needs.

Liquidity and Capital Resources

At March 31, 2008 cash and short-term investments were $3,697,331, compared to $5,909,516 at
December 31, 2007. Not included in cash and short term investments at March 31, 2008 and December
31, 2007 was $256,717 of restricted cash to secure letters of credit with customers.

Cash used by operations and capital requirements for the second quarter of fiscal 2008 was
$2,166,074, compared to $1,209,697 for the same period in fiscal 2007. Although the loss from
operations was lower in the current quarter, cash usage in the prior period was less due to
significant changes in non-cash working capital in the second quarter of fiscal 2007. In the
current period, inventory increased in order to fulfill customer orders in backlog, while accounts
payable and accrued liabilities decreased as payments related to inventory and other commitments
were processed. Partially offsetting these increases in uses of cash were progress payments
received by customers for orders in backlog. Cash used by operations and capital requirements for
the half year ended March 31, 2008 was $4,992,926 compared to $5,314,250 for the same period in
fiscal 2007. The decrease in cash burn for the half year ended March 31, 2008 was primarily due to
reduced losses and net capital expenditures compared to the same period in fiscal 2007.

On May 13, 2008, the Company announced the closing of an underwritten offering of subscription
receipts for gross proceeds of $9 million. Funds from this offering are not included in the cash
balances as at March 31, 2008.

The Company has a US$1 million accounts receivable line of credit and a US$1 million term loan
from Comerica Bank. As at March 31, 2008, the Company had drawn $146,379 against the term loan,
and had drawn $640,169 net of repayments against prior term loans. These credit facilities are
secured by the assets of the Company with certain exceptions. QuestAir is in compliance with all
of its bank covenants.

Authorized share capital consists of an unlimited number of common shares, of which 52,683,647
common shares were issued and outstanding as of April 30, 2008 and an unlimited number of
preferred shares authorized, none of which are issued. In addition, there were 2,650,838 stock
options and 192,308 warrants outstanding as of April 30, 2008.

On May 13, 2008, the Company announced the closing of an underwritten offering of subscription
receipts for gross proceeds of $9 million. Each subscription receipt is automatically exchangeable
into a unit consisting of one common share and one common share purchase warrant upon receipt of
shareholder and listing approvals, which are expected to be obtained on or before June 17, 2008.
The Company has also granted the underwriters an over-allotment option to purchase a further $1.35
million worth of subscription receipts exercisable for 30 days from closing. The offering is
subject to certain conditions, including but not limited to, the receipt of all necessary
regulatory approvals including approvals of the Toronto Stock Exchange and the AIM. Management
expects that such approvals will be received and the conditions will be met on or around June 17,
2008.

Further information on the Company's financial results for the quarter can be found at
www.sedar.com.

/T/

Balance Sheets

--------------------------------------------------------------------------
Unaudited (expressed in Canadian dollars)             As at          As at
                                                   March 31,  September 30,
                                                       2008           2007

ASSETS
Current assets:
Cash and cash equivalents                       $ 3,635,283    $ 5,726,245
Restricted cash                                     256,717        340,802
Short-term investments                               62,048      3,060,447
Accounts receivable                               1,728,020      1,412,983
Inventories                                       6,324,162      4,376,717
Prepaid expenses                                    212,731        256,378
Derivatives                                             623              -
                                                --------------------------
                                                 12,219,584     15,173,572

Deferred charges                                    268,000              -
Property, plant and equipment                     1,591,181      1,703,872
Other long-term assets                              182,080        175,080
                                                --------------------------
                                                $14,260,845    $17,052,524
                                                --------------------------
                                                --------------------------
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
Accounts payable and accrued liabilities        $ 2,773,417    $ 2,791,139
Deferred revenue                                  6,243,722      4,546,584
Current portion of bank debt                        481,651        564,306
Current portion of obligation
 under capital lease                                100,939         97,822
Derivatives                                               -         75,874
                                                --------------------------
                                                  9,599,729      8,075,725
Long term liabilities:
Bank debt                                           304,897        356,030
Obligation under capital lease                      100,940         97,822
                                                --------------------------
                                                 10,005,566      8,529,577
                                                --------------------------
Shareholders' equity:
Share capital
Authorized
 Unlimited common shares, voting,
  no par value
 Unlimited preferred shares, issuable
  in series, no par value
Common shares                                   109,702,558    109,383,859
Contributed surplus                               6,488,337      6,626,825
Deficit                                        (111,935,616)  (107,487,737)
                                                --------------------------
                                                  4,255,279      8,522,947
                                                --------------------------
                                                $14,260,845    $17,052,524
                                                --------------------------
                                                --------------------------

--------------------------------------------------------------------------



Statements of Operations, Comprehensive Loss and Deficit

--------------------------------------------------------------------------
Unaudited (expressed in Canadian dollars)

                  For the three months ended      For the six months ended
                     March 31,      March 31,      March 31,      March 31,
                         2008           2007           2008           2007

Revenues        $   2,298,448  $     872,746  $   3,866,373  $   2,516,222
Cost of
 goods sold         1,256,753      2,244,476      2,576,489      3,604,545
                ----------------------------  ----------------------------
Gross profit        1,041,695     (1,371,730)     1,289,884     (1,088,323)
                ----------------------------  ----------------------------

Operating expenses
Research and
 development - net    933,699      1,347,995      1,889,563      2,351,072
General and
 administration     1,189,821        902,657      2,075,389      1,662,914
Operations            430,189        242,093        867,807        532,415
Sales and
 marketing            487,634        564,960        889,210      1,065,035
Amortization          179,251        201,450        353,272        431,812
                ----------------------------  ----------------------------
                    3,220,594      3,259,155      6,075,241      6,043,248
                ----------------------------  ----------------------------
Loss before
 undernoted        (2,178,899)    (4,630,885)    (4,785,357)    (7,131,571)
                ----------------------------  ----------------------------

Other income
 (expense)
Interest income        31,462        140,059        100,752        296,132
Other income
 (expense)             90,034       (153,692)       236,726        (33,744)
                ----------------------------  ----------------------------
                      121,496        (13,633)       337,478        262,388
                ----------------------------  ----------------------------

Loss and
 comprehensive
 loss for
 the period        (2,057,403)    (4,644,518)    (4,447,879)    (6,869,183)
Deficit -
 Beginning
 of period       (109,878,213)   (97,294,990)  (107,487,737)   (95,070,325)
                ----------------------------  ----------------------------
Deficit -
 End of period  $(111,935,616) $(101,939,508) $(111,935,616) $(101,939,508)
                ----------------------------  ----------------------------
                ----------------------------  ----------------------------

Basic and
 diluted loss
 per share      $       (0.04) $       (0.09) $       (0.08) $       (0.13)
Weighted
 average number
 of common shares
 outstanding       52,683,647     52,442,386     52,622,558     52,417,454
--------------------------------------------------------------------------



Statements of Cash Flows

--------------------------------------------------------------------------
Unaudited (expressed in Canadian dollars)

                  For the three months ended      For the six months ended
                     March 31,      March 31,      March 31,      March 31,
                         2008           2007           2008           2007
Cash flows
 from operating
 activities
Loss for
 the period     $  (2,057,403) $  (4,644,518) $  (4,447,879) $  (6,869,183)
 Items not
  involving cash
   Amortization       179,251        201,450        353,272        431,812
   Gain on sale
    of property,
    plant and
    equipment               -           (285)             -           (350)
   Unrealized
    foreign
    exchange
    loss (gain)
    on derivatives     (2,557)        71,367        (76,498)         9,840
   Non-cash
    compensation
    expense            75,121        125,543        180,068        245,448
   Foreign
    currency
    loss                6,923              -          6,234              -
                ----------------------------  ----------------------------
                   (1,798,665)    (4,246,443)    (3,984,803)    (6,182,433)
                ----------------------------  ----------------------------
Changes in
 non-cash
 operating
 working capital
  Accounts and
   funding
   receivables      1,131,458        848,538       (315,037)       193,946
  Inventories        (679,341)       181,175     (1,947,446)      (372,695)
  Prepaid
   expenses          (115,162)      (214,742)        36,647        (96,891)
  Accounts
   payable
   and accrued
   liabilities       (659,682)     1,202,534       (238,844)      (684,699)
  Deferred
   revenue             42,106      1,118,404      1,697,138      2,189,004
                ----------------------------  ----------------------------
                     (280,621)     3,135,909       (767,542)     1,228,665
                ----------------------------  ----------------------------
                   (2,079,286)    (1,110,534)    (4,752,345)    (4,953,768)
                ----------------------------  ----------------------------
Cash flows from
 investing activities
Decrease in
 short-term
 investments                -              -      3,060,447      2,400,000
Increase in
 short-term
 investments                -              -        (62,048)             -
Purchase of
 property, plant
 and equipment        (86,788)       (99,448)      (240,581)      (366,267)
Government grants
 and funding related
 to property, plant
 and equipment              -              -              -          5,435
Proceeds on sale
 of property, plant
 and equipment              -            285              -            350
Decrease in
 restricted cash            -              -         84,085              -
Increase in
 restricted cash            -       (372,574)             -       (107,594)
                ----------------------------  ----------------------------
                      (86,788)      (471,737)     2,841,903      1,931,924
                ----------------------------  ----------------------------
Cash flows from
 financing activities
Issuance of common
 shares on exercise
 of stock options           -         58,788            143         58,788
Deferred charges      (46,876)             -        (46,876)             -
Increase in
 bank debt            146,379              -        153,629        248,505
Repayment of
 bank debt           (145,614)      (112,749)      (287,416)      (179,746)
                ----------------------------  ----------------------------
                      (46,111)       (53,961)      (180,520)       127,547
                ----------------------------  ----------------------------
Decrease in cash
 and equivalents   (2,212,185)    (1,636,232)    (2,090,962)    (2,894,297)
Cash and
 equivalents -
 Beginning
 of period          5,847,468      9,760,735      5,726,245     11,018,800
                ----------------------------  ----------------------------
Cash and
 equivalents -
 End of period  $   3,635,283  $   8,124,503  $   3,635,283  $   8,124,503
                ----------------------------  ----------------------------
                ----------------------------  ----------------------------

--------------------------------------------------------------------------

/T/

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

This press release contains forward-looking statements. Forward looking statements generally can
be identified by the use of forward looking terminology such as "may", "will", "expect", "intend",
"anticipate", "plan", "foresee", "believe" or "continue" or the negatives of these terms or
variations of them or similar terminology. These forward looking statements include references to
the future success of our business, technology, and market opportunities. By their nature, forward
looking statements require QuestAir to make assumptions and are subject to important known and
unknown risks and uncertainties, which may cause QuestAir's actual results in future periods to
differ materially from forecasted results. While QuestAir considers its assumptions to be
reasonable and appropriate based on current information available, there is a risk that they may
not be accurate. These forward looking statements are neither promises nor guarantees, but involve
known and unknown risks and uncertainties that may cause the Company's actual results, level of
activity, performance or achievements to be materially different from any future results, levels
of activity, performance or achievements expressed in or implied by these forward looking
statements. These risks include risks related to general economic conditions, risks associated
with revenue growth, operating results, industry factors and QuestAir's general business
environment, risks associated with doing business with partners, risks involved with the
development new products and technology, financing risks, such as risks relating to liquidity and
access to capital markets, and risks relating to competition, among other factors. Readers are
cautioned that the foregoing list of factors that may affect future growth, results and
performance is not exhaustive and undue reliance should not be placed on such forward looking
statements which speak only to the date they were made. Except as required by law, QuestAir
disclaims any obligation to publicly update or revise any such statements to reflect any change in
the Company's expectations or in events, conditions, or circumstances on which any such statements
may be based, or that may affect the likelihood that actual results will differ from those set
forth in the forward looking statements.



-30-

FOR FURTHER INFORMATION PLEASE CONTACT:

QuestAir Technologies Inc.
Sherry Tryssenaar
Chief Financial Officer
(604) 453-6902
Email: tryssenaar@questairinc.com
Website: www.questairinc.com

OR

Canaccord Adams
Robert Finlay
+44 (0) 20 7050 6500

OR

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

OR

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

OR

Karyo Communications
Stephen Burega
Canadian Media Contact
(604) 623-3007

-0-

                                                                
QuestAir Technologies Inc.



                                                                

Questair Tech (LSE:QAR)
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