The Respironics System One APAP I have now is the only one I had any input on. I told my sleep doc I wanted to try an APAP.
This was the machine I got.
My first CPAP was a DeVilbiss POS with humidifier which I got in 2002 and used it until 2007 when it quit working. It was like sleeping with a vacuum attached to your nose.
The second CPAP was a ResMed S8 Escape machine with humidifier. It was quieter than the DeVilbiss it replaced but not by much.
As far as my choice of machines, I have never had one. It was the one provided by the DME.
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