I got a RESMED AirSense 10 AutoSet and am using FX Swift nasal pillows and no humidifier.
First night numbers, hours 8, pressure 8.3, leak 10 l/min, ahi .1, central 0.0.
So I'm a very happy camper again. Not sure how to interpret the leak. Interesting to see the pressure at 8.3 which is around the same as my old machine ran at on auto. My sleep doctor didn't think this was enough.
He was bothered by the fact that my machine was only applying 7 - 8 cm of water. He expects some one my size to be 10 - 15 cm of water. So off to the sleep lab for an over night study.
I had my study with the outcome being my pressure should be 14cm of water. The Dr suspects that the low pressure provided by my acap could be due to the algorithm or my relatively narrow nasal airways.
So will be interesting to see what a weeks data looks like.