This just started happening recently. I put the mask on and turn on my S9. As soon as I lay back and try to relax, the full face mask starts to vibrate when I breath. It only vibrates on the top part (nose bridge) of the mask and not sure why. It's irritating to try to sleep with it vibrating on your face. Just wanted to see if anyone who's had the same experience and what you did to fix it.
I have a Quattro FX full face mask.
Thanks so much, Alex
Try tightening the top straps. IMO: The Mirage Quattro is a better FFM because of the adjustable forehead brace.
(I believe the mask cushions are the same.)
Adjusting the forehead brace permits a good seal without undue pressure on the bridge of the nose.
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