These replacement cushions can be used for both the AirFit F20 and the AirFit F20 For Her masks. The small and medium cushions are compatible with both the masks however, the large size cushion is only compatible with AirFit F20 full face mask.
During CPAP treatment, this cushion conceals both the nose as well as mouth.
 
To improve comfort and stability, the InfinitySeal is equipped with variable thickness. It adapts to each individual's distinctive facial contours, so you can be assured of gaining a comfortable and secure fit for the mask. There are 7 distinct contours and comfort points of different thicknesses within the cushion to assure a stable fit of unrivaled comfort.
 
When you are pulling the mask over your head and intending to set the cushion over your mouth and nose, ensure the position of the cushion. To ensure correct positioning, the cushion has to rest just below the lips and at the base of the nose bridge for optimum performance. After that, you can make adjustments to the headgear for a better fit.