Patient interface

Abstract

To provide under-nose interface assemblies improved in comfort and / or sealing performance.SOLUTION: An interface for positive pressure respiratory therapy includes a mask assembly having a mask seal and a mask shell. The mask assembly is positioned lower than and exposes a bridge of a user's nose. The mask seal includes first and second portions on respective first and second sides of a nasal region that contact opposing sides of the user's nose. The first and second portions each include supports that help maintain a shape of the mask seal. A pair of covers can each be supported relatively to the mask assembly and adjacently to a corresponding one of the first and second portions of the mask seal. The covers limit expansion of the first and second portions of the mask seal in response to pressurized air within the mask seal. The supports of the first and second portions can transfer a load from the mask seal to the covers.SELECTED DRAWING: Figure 1

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