COMPATIBILITY: BLUE Gel Nasal Cushions is supplied with all ComfortGel BLUE Nasal CPAP Masks. They are also compatible with ComfortGel "Original" NASAL Masks.

SIZING: The ComfortGel BLUE Nasal mask uses three different mask frame sizes -- Petite, Small/Medium, and Large. Petite cushions and flaps will only fit the Petite frame. Large cushions and flaps will only fit the Large frame. Small and Medium cushions and flaps are interchangeable and can be used on any Small/Medium frame.

FITTING: The Original Gel Nasal Cushion used a boiling procedure to better mold the cushion to the users face, the BLUE Gel Nasal Cushion has been updated to better fit the face without boiling. DO NOT boil the BLUE Gel Nasal Cushion.