The AirFit N20 is a nasal CPAP mask designed to be so easy to put on and use that you may not even need the fitting instructions or rules. It offers a simple, modular design and magnetic clips, which guide the masks headgear to its frame quickly and easily. The N20 CPAP Mask fits a remarkable 99% of patients in a recent international fitting study. The technology of the infinity seal cushion, soft frame, and plush headgear provide comfort along with versatility, making this mask a very user-friendly comfortable mask for your CPAP therapy.