A single size, a single strap, a light touch: this describes Fisher & Paykel's Pilairo? Nasal Pillow CPAP Mask with Headgear. 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.