For the couple of weeks I've had the ComforLite 2 it has not been a good mask for me. I'd use for a few hours at a time, but then give up in disgust and revert back to the Swift. At least that's the way it was up until I made a minor modification to the CL2 yesterday.
The problem for me with the CL2 was that the pillows just didn't fit my nares correctly. Sure, I tried tweaking just about everything that could be tweaked, but to no avail. I even tried reshaping the pillows and their angles, again to no avail. The darned pillows either bit into my nostrils or leaked air - lots of air.
I finally concluded that the pillows interface for the CL2 had a serious design flaw which pivoted the pillows seating angle off the tip of my nose. Now, if genetics had blessed me with a flat nose then the CL2 would probably have worked just fine . . . Anyway, as much as the mask cost, I resolved to try to correct this deficiency. To my engineering mindset this meant additional support was needed at the back of the pillows, the part closest to the face, in order to keep the pillows snug against the nares there. I finally achieved success using fishing line to provide the additional support. It took days to think this through. (Well, OK, truth is it took days to get around to going to Wal-Mart to get the fishing line. The idea came in just a flash of inspiration).
The fishing line attaches to the metal brackets just below the hole where the pillow snaps in, and hooks around the air vent. After snugging the line up, then the other end of the fishing line is attached to the other metal bracket for the pillows just below the hole there.
Hard to get much simpler. No hacksaw required for this mod. It's also totally reversible - if you don't like it just cut the fishing line off, and the mask is back to its original configuration.
I slept well with it last night. The CL2 is much quieter than the Swift. It was so quiet that I was actually listening to my BiPAP-auto and thinking it was really loud. Then I discovered there was a leak between the machine and humidifier. Once I corrected the leak, everything was amazingly quiet, eerily quiet. It was almost unnerving during the night not to hear the constant whoosh, whoosh of air, especially when I'd wake up during the night. It was almost like not having a mask on. Don't know if I can get used to that, but I'll try.