ResMed Quattro Air frame system (without headgear) Includes the frame system, elbow and full face mask cushion for the ResMed Quattro Air full face CPAP mask. This purchase does not include the Quattro Air headgear. About ResMed Quattro Air mask system: -Full face mask, mouth and nose coverage, silicone cushion -Features the Spring Air cushion, designed to reduced pressure on the face while maintaining a high-performing seal -Prescription required for complete mask system