I have a Resmed S9 Elite, I had problems with dry mouth and throat when I first got my machine. I also started having more sinus problems which for me was not normal. So I talked with my doctor and she suggested the heated hose which has been a live saver for me. The machine now monitors the tempera...

Thanks I knew it was going to be to simple for me to understand.

I know this is probably a stupid question, but I just got a resumed s9 machine and the manual has directions for both machine how do you know if you have a elite or auto-set model?