A resistance breathing device includes a face mask having a plurality of apertures extending therethrough. The face mask is adapted to overlay a users mouth and nose and to form an air-tight seal with the users face. The device also includes an outer layer overlaying the face mask and having a pair of straps for affixing said face mask about the users face. The device also includes at least one air admittance valve assembly disposed within a corresponding one of the apertures of the face mask. The air admittance valve assembly is adjustable to provide a selected degree of air flow therethrough. The device also includes at least one air exhaust valve assembly disposed within a corresponding one of the apertures of the face mask. The air exhaust valve assembly prevents air from passing into the face mask and allows air to pass out of the face mask.
