Standing out among other nasal pillow masks, the Pilairo has one size designed to fit most faces. Inspired by the hummingbird, the Airpillow Seal “hovers” over the nose with support from a mask base which does not touch the face, limiting contact and pressure points.The defining feature of the Pilairo is the self-adjusting seal that fits a range of sizes and shapes. The one-size-fits most design means no fit decision or changing out parts. The Pilairo slips into place and self-inflates with the air stream. The very thin microfine contoured silicone is petal soft and tapers to just .04 inches to seal against the nasal opening.