With the InfinitySeal technology, the AirFit 20 series masks adapt to the unique facial contours of each patient, and are designed to provide a secure and comfortable fit. And thanks to auxiliary inner loops, patients can readjust their mask, even during therapy, while maintaining the cushion’s form and function to deliver an optimum seal.

Discover the AirFit N20 and AirFit F20 new cushions’ geometry.

When sizing your patients on an AirFit20 series mask, please use our new sizing guides for AirFit F20 and AirFit N20 that have been specially designed for each mask in our series. For additional tips, see our sizing videos for AirFit N20 and AirFit F20.


Your type of breathing can affect your CPAP therapy. So, choosing the right mask to match how you breathe while sleeping is important. For example, if you’re a mouth breather, we recommend a full face mask, because therapy on a nasal mask will be less effective and less comfortable.

You can print our sizing guide – specifically developed to help you determine which mask size is best for you. For additional tips, see our sizing video.

Different masks have different cleaning requirements. For videos and guides relating to your mask’s specific cleaning and maintenance needs, see our support page.