i'm using the RemStar M Series with c-flex, but cant adjust the settings for exhalation (the part you can adjust before you fall alseep).

please advice if possible.

Hi ..

I think you're talking about the "ramp" feature?

Not sure if this will help you, but here's a link to the manual page for Respironics, just click on your model for a PDF of the user's guide. It should have directions for you on how to adjust it.

http://global.respironics.com/manualsandliterature.asp