The ResMed AirFit N30 is an under-the-nose nasal cradle mask built for people who want minimal contact and an open field of view. If a full face mask feels heavy or a nasal pillow mask feels too intense right at the nostril, the N30 cushion sits gently under your nose instead, so it works well for side sleepers, nose breathers, and anyone easing into CPAP therapy for the first time.The soft silicone cushion comes in three sizes, Small, Small-Wide, and Medium, and the starter pack includes all three so you can find your fit in the first few nights. QuietAir venting keeps sound down to about 18 dBA, and the QuickFit headgear slips on and off without clips, similar to pulling on a hat.The mask connects through a short tube at the front, not at the top of the head. If you are looking for the top-of-head version, that is the separate AirFit N30i. The AirFit N30 is a prescription device and requires a valid prescription for CPAP or bilevel therapy.