ResMed AirFit™ F40 Replacement Parts
Restore the soft, minimal-contact seal of your AirFit F40. This page lists AdaptiSeal™ silicone cushions (sizes to fit most faces) and headgear to bring back strap tension. Swapping tired soft parts reduces leaks and night-time noise without replacing your whole setup. Parts here are F40-specific and not compatible with other mask families.
View all Full-Face CPAP Replacement Parts