The ResMed Mirage FX apparatus offers the perfect balance of lightweight comfort, premium performance and simplicity. Built with your convenience in mind, the Mirage FX is made up of only four parts, making it easy to use, clean and reassemble. It's also engineered to deliver maximum comfort while you sleep - the dual-wall, Spring Air cushion is soft on your face, and the ultra-flexible forehead support reduces contact with your skin. Key Features Freedom to move. The quick-release elbow detaches from your device without the need to remove the apparatus, allowing you to freely move in and out of bed and easily reconnect to your device as needed. Freedom to see. The slender, lightweight frame provides an open field of vision without sacrificing apparatus stability. Flexible. The SoftEdge is flexible and breathable, helping to improve your level of comfort and apparatus support.