The Mirage series of CPAP masks have endeavored to provide superior cushion design through the incorporation of two cushion layers. The dual-walls consists of an inner, supportive layer that stabilizes the cushion and a softer, outer membrane that reduces the likelihood of leaks and pressure sores. As air flows through the cushion, the outer membrane rolls and inflates around the nose rather than stretching over it.
Cushion Size: Both the frame and cushion of the Quattro FX are sized. The cushion size must be the same size as the frame to function. Sizes cannot be mixed.
- Small cushions fit only small masks
- Medium cushions fit only medium masks
- Large cushions fit only large masks