Switched from ResMed Quattro FX full face mask to Respironics Wisp nasal mask last night. Numbers are great and autoset required slightly less pressure.
BUT the chin strap added to the nasal mask results in more discomforting apparatus on the face than did the ffm alone.
So, I hatched the idea of adding a strap to the nasal mask harness that loops around the lower strap (near the snap-in connectors) and passes under the chin. It seems like an obvious improvement that surely someone else has tried.
Has anyone heard of or invented a nasal harness that incorporates this feature?
Jim I tried that but with poor results. At first, like you, I thought it was a great idea, but the problem is, you need a chin strap to keep your mouth closed. When your mouth opens it tends to pull down on your nasal pillow and make it leak. Plus, it bothered me having more "stuff" covering my face.
So, what I've had better luck with is fabricating a pad to place between my chest and chin. You can use most anything soft and pliable. I experimented with everything from a foam dog toy to now a men's sock. I think someone else suggested using the leg from pantyhose, with leg removed of course.
I take a long dress sock and stuff another pair of socks that have been folded together, down to the center. I have said in other threads that it looks like a snake that ate a rat. Anyway I take the loose ends and tuck them inside the neck band of my Tshirt, to keep it in place.
I'm sure one could also figure out a way to make it into a band around the neck. The key is getting the right thickness and density to keep your chin propped up.
I have been using this home-made rig for over a month now with great results. My nasal pillows stay in place nicely and I can leave the straps fairly loose. When the pillows inflate they swell to seal to your nostrils. Since making this change, my AHI has dropped consistently to less than 1 and leakage is minimal.