I am using the ResMed Airfit F20 full face CPAP large mask with headgear. I like it except that in order to get a good seal (NO leaks) it must be worn tight on my face. It also causes soreness at the bridge of my nose when I use or. remove the mask. ResMed, if you can correct this problem the mask would be great I am going to try a medium size mask and hope this will correct the problem. Send this to ResMed for corrections to the mask, please. Thank you.
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