The ResMed Quattro FX replacement headgear attachment is available in three sizes: small, medium, and large. The headgear is crown-shaped, with connection straps that go above and below each ear. Because there is no heavy forehead pad, you will be able to move freely when wearing the Quattro FX helmet. Compatibility. This headgear is only compatible with the Quattro FX; it will not function with ResMed's original Mirage Quattro design. Furthermore, this is only the headgear; the headgear clips are not included. Four effects. The Quattro FX was created with sleep apnea therapy patients in mind. The unobtrusive interface allows users a clear line of vision, and the comfortable headgear straps are flexible, allowing you to sleep in any position you find comfortable.
