The ResMed AirFit P10 without Headgear is designed for patients who need parts to refresh or rebuild their masks. You get a Mask frame and a medium pillow.The AirFit P10 is made up of three main elements: QuietAir vent frame, headgear, and nasal pillow. They can be easily added or detached from the assembly for complete disassembly. The mask weighs approximately 1.6 oz. when assembled.