DreamWear Nasal CPAP Mask with Headgear ResMed and an inner septum bridge

and an inner septum bridge membrane that delivers the actual upward-pressing seal against the septum base

A conventional nasal mask seal uses a flat silicone flange that compresses against the face through direct downward pressure — if the mask shifts angle during sleep

HEADGEAR AND HOSE ATTACHMENT

The frame question is addressed below

seal designs that require an upper lip contact point are vulnerable to beard growth disrupting the seating surface

DreamWear Nasal CPAP Mask with Headgear ResMed and an inner septum bridgeDreamWear Nasal Mask with Headgear For Patients Who Know Their Size This listing is for patients who already know their DreamWear frame size and cushion size returning users reordering a known combination, patients who were fitted at a CPAP clinic, or patients who identified their size from the FitPack and are now replacing a worn cushion. You'll select both your frame size and your cushion size before adding to cart. Not sure of your size, or trying