The ResMed AirFit P30i is a tube-up nasal pillow mask — the same headgear and elbow as the AirFit N30i, but with a nasal pillow cushion instead of a cradle. A good option if a full nasal mask feels too enclosed but you still want the tube-up design.

Nasal pillow cushion: two soft silicone pillows seal at the nostrils. Replace every 1–3 months; a pillow that's gone hard or won't hold a seal is the most common source of a leak on this mask.

Headgear and frame: shared with the N30i — one set covers either mask if you own both. Expect to replace fabric headgear around every 6 months.

QuietAir vent and elbow: shared with the N30i family. Check for a blocked or worn vent if the mask has become noisier than usual.

Not sure if you have the P30i or the N30i? The P30i's cushion is two small pillows at the nostrils; the N30i's cradles under and around the nose instead. The cushions aren't interchangeable between the two, even though headgear and frame are.