AirFit F30i features a top-of-head air tube connection that gives you the freedom to comfortably switch sleep positions. And its UltraCompact mask cushion rests under your nose rather than over it, which helps prevent next-day discomfort on the top of your nose. It’s also a mask you can count on: full face mask users gave it 4 out of 5 stars in the key categories of overall comfort and seal.