The ResMed Swift™ FX nasal pillows mask makes it easy to forget about the mask you're wearing. Combining a super-soft fit with a minimal appearance, the Swift FX covers as little of your face as possible, softly adjusting to your unique facial contours and muscle movements without leaving facial marks. It's easy to use and offers maximum comfort and a real sense of freedom - whether you sleep on your side or your back, you can depend upon reliable sleep apnea therapy while wearing the Swift FX.