Supplied-air respirators; required components.

(a) Each supplied-air respirator described in § 84.130 shall, where its design requires, contain the following component parts: (1) Facepiece, hood, or helmet; (2) Air supply valve, orifice, or demand or pressure-demand regulator; (3) Hand operated or motor driven air blower; (4) Air supply hose; (5) Detachable couplings; (6) Flexible breathing tube; and (7) Respirator harness. (b) The component parts of each supplied-air respirator shall meet the minimum construction requirements set forth in subpart G of this part.