This is a replacement cushion for the following CPAP Mask:
AirFit™ F20 Full Face CPAP Mask with Headgear
AirFit™ F20 Full Face For Her CPAP Mask with Headgear
ResMed has designed the most adaptive silicone cushion, with InfinitySeal™ Technology. The cushion features specially designed loops and varying thickness levels designed to prevent blowout, in order to create a secure seal and prevent mask leaks.