Hi. Hello everyone; I'm new to sleep apnea... I just got this mask that whistles everytime that I take an exhale breathe. Its the airfit P10. Does anyone else have this problem? I have checked my filters and the machine is set to the correct mask. It wakes me and drives me crazy that I'm trying to adjust all night but nothing is helping. I did have a full face mask but it kept leaking into my eye, nevermind the yucky scar it was going to leave (every morning I had the red line right on my nose). The sleep center let me exchange once and this nasal pillow mask would be perfect except for that durn whistle. Anyone have any ideas/advice? I would greatly appreciate.