Definitely not the humidifier or hose on the back loose. Been there already. I had my appointment today and was able to demonstrate the noise. The therapist wasn't even sure she heard anything, and frankly, what is a thunderously loud noise in the middle of the night in a silent room is fairly tame ...

Hey, I got an S9 which I have been using for about 3 weeks. Once I learned to use it it was plenty quiet- but that changed last night- There is a loud boomy kind of air noise coming from somewhere in the back of the machine- it changes when I breathe and sounds kind of like a "Darth Vader" when I br...

Hey everyone, I'm new here-

I just got a resmed S9- not sure exactly which one. Can someone point me to where I can find the software- also I understand there is a trick to reading the SD card- is that correct?

Thanks and much appreciated.
fxworks