Patent ID: 11071336

Abstract:
A mask includes a housing defining (1) an inner layer, an outer layer, and a volume in between, (2) a mouth aperture to be disposed about a mouth of a user, (3) a side aperture to allow fluid flow into and out of the housing, (4) an oral fluid pathway extending from the mouth aperture to the side aperture, and (5) a nasal aperture to be disposed adjacent to nostrils of the user. The mask also includes a nasal channel extending from the nasal aperture and to a nasal exit aperture. The housing is configured to route (1) fluid flow received at the mouth aperture distally through the oral fluid pathway, and (2) fluid flow received at the side aperture proximally through the oral fluid pathway. The nasal channel is configured to route fluid flow received at the nasal aperture distally through the nasal fluid pathway.