Resmed Quattro FX Cushion Size: Medium (Part# 61722)

This is the replacement cushion for the Resmed Quattro FX FFM CPAP Mask.Part# 61722Size: Medium 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.

Resmed Quattro FX Cushion Size: Medium (Part# 61722) Fits on the ResMed Mirage Quattro FX, but is NOT a match for the original ResMed Mirage Quattro. Fewer Contact Points Minimize Skin Irritation and Provide an Unobstructed View Dual–Wall Cushion Does Double the Work Intentional Design Helps Distribute Pressure and Accommodate Movements