BMC iVolve FM1A Full Face MaskiVolve FM1A Superior performance delivers maximum comfort. With lighter design and effective treatment, F1A will offer you and your family a good night's sleepFeaturesUltra comfort Dual-wall cushion will significantly fit your face with minimal pressure points. The slide-in design provides you with a high-level seal and effective treatment. Friendly usability Thanks to its 5 parts compact design, you can reassemble it fast. Fewer parts, more convenience. Visual Freedom With the unique design, your vision is totally released and you will have the chance to enjoy the world as well as therapy.