With adjustable headgear and a nearly silent, soft exhalation valve the F&P Pilairo Q brings inspired enhancements to the popular Pilairo design. Pilairo Q's self-inflating AirPillow Seal "hovers" over the face to seal gently in and around the nose. The AirPillow is so thin that it can move and flex in any direction; maintaining an effective seal without pinching or pressure.