ResMed AirFit F40 Full Face Mask Size:M/SML (Medium Cushion / Small Frame) while the Large cushion is

while the Large cushion is intended for use with the AirFit F20 Full Face Mask

This HumidAir's shell is also made with injection-moulded plastic but provides even more durability than the standard tub

The standard HumidAir is meant for single patient use and cannot be professionally disinfected

Adjustable QuickFit elastic headgear with split-strap is designed to make the mask easy to adjust

premium performance and simplicity

ResMed AirFit F40 Full Face Mask Size:M/SML (Medium Cushion / Small Frame) while the Large cushion isA minimalist mask, maximised for you. The AirFit F40 Full Face Mask is ResMed's new ultra compact, full face mask that combines high seal performance with comfort in a flexible, easy to use design. The AirFit F40 features includes the new AdaptiSeal silicone cushion adapts to the face, helping to maintain seal and comfort even when changing positions during sleep. The new low profile AirFit F40 delivers that with the comfort patients seek. It's