I was first given the Resmed UMFF because it was suppose to be the one and only mask.
I had obscene noises from the first night. I took it off and gave it a throw. I made anti-obscene gaskets and they didn't work.
I finally gave the UMFF a pitch into the trash and never once looked back.
I measured myself for the Hans Rudolph Full Face mask and I am now back to using it and getting along great.
I vote give the UMFF a pitch in the garbage can and get a completely different mask.
