The Full Face UltraSoft™ Memory Foam Cushion for F20 CPAP Masks is a foam cushion for use with the AirTouch™ and AirFit™ F20 Full Face CPAP masks. This cushion is intended to be replaced every 30 days and cannot be washed, only wiped after each use. The cushion is available in small, medium, and large. All sizes fit the F20 frame which is universal to all F20 cushions. Choose desired cushion size when ordering.