I'm wondering if anyone else has had problems with the accuracy of the cms50e. I've had two of them that I returned. One from an ebay seller in China, and one from Walgreens. Both read about 3 points low on the oximeter when compared to a calibrated machine. Pulse seems to be accurate. No problems w...

I simultaneously compared it to another one that I knew to be accurate. The readings I was getting if correct would be very close to respiratory failure.

I recently purchased a Contec CMS50FW recording pulse oximeter. It is reading about 4 points low on the pulse ox. In the manual it says to calibrate it periodically, but doesn't say how to do it. It came from China and support has been non existent so far. I kind of like it except for the inaccurate...

Average AHI is 2.0 and I feel pretty good. I guess my main question is about the total leaks line showing an increase whenever the pressure shows an increase. I guess if that's normal then maybe the machine is doing it's job. It just made me curious when I never see the pressure go up near the level...

I have questions as to whether my auto cpap settings are right. I'm told by technician at the place I purchased machine that it's doing it's job. I'm in doubt it is as my sleep study indicated I needed a setting of 14. They set the machine on auto cpap 6-14. I've had it a couple of months and have n...