Patent attributes
A resistance breathing device includes a face mask having an inlet aperture, an intake restricting element having an inlet aperture, and an adjustment mechanism, the intake restricting element positioned adjacent to the face mask and rotatable between a first position, in which a first portion of the inlet aperture of the intake restricting element overlays a first portion of the inlet aperture of the face mask, and a second position, in which a second portion of the inlet aperture of the intake restricting element overlays a second portion of the inlet aperture of the face mask, the second portion of the inlet aperture of the intake restricting element being larger than the first portion of the inlet aperture of the intake restricting element, the adjustment mechanism attached to the face mask and movable between first and second positions corresponding to the first and second positions of the intake restricting element.
