The replacement CPAP headgear for the ResMed Quattro Air Full Face CPAP Mask is available in sizes small or standard. Designed to move with you, the SoftEdge headgear for Quattro Air features a criss-crossing back strap for additional stability, providing the secure seal you're looking for. The item for sale is only the replacement CPAP headgear for the ResMed Quattro Air Mask System, a full-face mask, offering mouth and nose coverage and a silicone cushion. It features the Spring Air cushion, designed...