The main body of the Amara View Under-the-Nose Cushion covers your mouth so you can breathe naturally, as needed, with your mouth open or closed. A small, rectangular hole in the top of the cushion allows you to breath through your nose as well.

Sizing Information: Three cushion sizes -- Small, Medium and Large -- are available to fit a wide range of faces. Any cushion size will fit on any Amara View mask frame; so choose the size that fits you best. Cushion size is indicated by a single letter -- S, M or L -- printed on the base of the cushion.