I have the Midmark spirometer. When I used it w/ AC Ver 5, I had no problems, however when I upgraded my computers to Win Vista and Win 7. Midmark no longer supports drivers for the new operating systems. It will only work w/ XP, or Win 2000. So right now the Spirometer is useless.
Neil E Goodman MD, FAAP, FSAM
2500 Starling Street,#401
Brunswick, GA 31520
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