(12-13-2015, 02:23 PM)mrkdilkington Wrote: I recently bought an Airsense 10 after using a Philips System One, and find that the A10's algorithm is much more aggressive and any time it goes above 9 or 10 cm it will wake me up (respiratory rate literally goes off the charts in sleepyhead, like above 50 bpm). This can wake me up in as little as 30 minutes after falling asleep, so I have to narrow the pressure range to a max of 9 when using it. You could possibly have a similar problem. Also raise the lower range a few points as others have said, I get the 'not enough air' feeling when under 6.5cm.I don't know which A10 you have; but myself and several users have found on the S9 that high BPM is false. Wiggles in the flow waveform can cause triggering to/from IPAP/EPAP; and that counts as a breath. This ragged flow waveform usually occurs when there is snoring or some flow limitation.
At 50 BPM, you'd likely pass out from respiratory alkalosis.
(Blowing off too much CO2 shifting the blood pH numerically higher and causing vasoconstriction.)
Some data you have to take with a grain of salt; and ask: can that really be?