Mouth Breathers

For individuals who naturally breathe through their mouth while sleeping, or those who suffer from chronic nasal congestion, deviated septums, or seasonal allergies, standard nasal CPAP masks can fall short. If you use a nasal-only mask and your mouth drops open during deep sleep, the therapeutic air pressure escapes instantly. This "mouth leak" causes your machine to lose its effectiveness, disrupts your sleep cycle with rush-of-air noises, and triggers severe morning dryness in your mouth and throat. Our Mouth Breather collection provides the ideal clinical solutions to keep your airway open and your therapy comfortable.

The primary solution for consistent mouth breathing is a high-performance Full Face Mask. Unlike nasal options, full face masks—such as the ResMed AirFit F20, the ultra-compact AirFit F40, and the top-of-the-head tube routing AirFit F30i—seal comfortably around or under both the nose and mouth. This ensures that no matter how you breathe throughout the night, the machine safely maintains your prescribed pressure settings. For those who want to stick with their preferred nasal setup but need help keeping their jaw from dropping, this collection also includes medical-grade ResMed Chin Straps to provide gentle upward support.

At S-Med, we stock an extensive inventory of genuine manufacturer solutions from trusted global brands like ResMed and Löwenstein (including the robust Joyce mask series). Backed by over 23 years of clinical authority supplying NHS Trusts and private sleep centres across the United Kingdom, we help you find the exact fit for your facial structure. Say goodbye to morning throat irritation and leaking air with fast, tracked UK delivery and expert after-sales support from our team of qualified sleep physiologists.