It's such a high quality item, but, after I've worn the mask for over an hour, my wife complains that the tank starts making loud, almost squealing noises. Still not sure why, but when I put Vaseline on the seals, that seems to help. This is really my only complaint, though.
M
Margaret S.
AirSense 11 and AirCurve 11 HumidAir Standard Water Chamber
L
L.R.
Great product Quiet
M
Mark A.
Great Products
A
Arnold B.
AirSense 11 and AirCurve 11 HumidAir Standard Water Chamber
