The replacement ResMed AirFit F10 Cushion / ResMed Quattro Air Cushion comes as a single full-face cushion in your desired size: extra small, small, medium, or large. All four sizes fit on the ResMed AirFit F10, AirFit for Her, Quattro Air, or Quattro Air for Her Full Face Masks. This item for sale is only the replacement cushion for the ResMed AirFit F10 mask system (as well as the aforementioned mask systems). The AirFit F10 mask is a full-face mask with mouth and nose coverage that sports a silicone cushion. It features the Spring Air cushion, designed to reduced pressure on the face while maintaining a high-performing seal. ResMed's AirFit F10 is the first generation of today’s popular AirFit series. This item is the ResMed Quattro Air/AirFit F10 mask cushion only. It includes the full-face cushion for either the ResMed Quattro Air or the ResMed AirFit F10 full face CPAP mask. This purchase does not include the Quattro Air or AirFit F10 headgear. A prescription is required for a complete mask. Every day, Resmed employees come to work with a focus on building and supporting technology that helps people live healthier, happier lives. It began over 30 years ago with the invention of a machine that helped people breathe easier and sleep better. It continues today with digital health solutions that help keep people out of the hospital. We're leading the way in cloud-connected medical devices that transform care for people with sleep apnea, COPD, and other chronic diseases. Our comprehensive out-of-hospital software platforms support the professionals and caregivers who help people stay healthy in the home or care setting of their choice.