Patent attributes
A resistance breathing device includes a face mask having a perimeter and a central aperture extending therethrough, and being adapted to overlay a user's mouth and nose such that the perimeter forms an air-tight seal with the user's face. An outer layer overlays the face mask and includes a pair of straps for affixing the face mask about a user's face. An insert plate is disposed within the central aperture of the face mask and has an inlet aperture extending therethrough. A central insert overlays the insert plate, has an air inlet aperture extending therethrough, and is movable between a first position in which a first portion of the air inlet aperture overlaps the air inlet aperture of the insert plate and a second position in which a larger second portion of the air inlet aperture overlaps the air inlet aperture of the insert plate.
