ResMed AirTouch F30i Full Face Mask Replacement FrameThe AirTouch F30i Clear Frame is a replacement system of the AirTouch F30i Full Face CPAP BiPAP system. It works as a central support for the cushion, elbow, and headgear of the mask, and helps to maintain the internal air channel that delivers therapy pressure from the CPAP or BiPAP machine to the mask interface. The frame is built from medical grade polycarbonate designed for high impact resistance and stability under continuous positive airway