Need Help With New Mask

[mawaw1992]

I have been using a Resperonics Dreamwear nasal mask for many years but for what ever reason has started rubbing the underneath of my nose raw. I have bought replacements and all rub it raw. I purchased a Resmed N20 to try it out and see whether I liked it or not. The first thing I noticed is that it was hard to exhale. Is there some setting on my machine to make it easier to breath while using it? Other than that he mask feels very comfortable to wear. I am a side sleeper that turns a lot during the night so I hope I don’t have problems with leaks with it.