This Dual-Wall Spring Air Cushion is designed for all Mirage FX & Mirage FX For Her CPAP Masks. Gentle Spring Air cushion creates a perfect seal while delivering whisper-quiet therapy and provides even pressure distribution with extra softness at the nasal bridge, reducing common discomfort in this sensitive area. ResMed patented Spring Air technology makes your cushion lightweight and unobtrusive. The cushion for the Mirage FX is filled with air on the inside, so it's less bulky and more comfortable than most cushions. The outer membrane seals against the skin on the outside of your mouth, while the inner cushion rests comfortably on your face.
