Respirators other than for artificial respiration; supplied air respirators other than for artificial respiration; cartridges, filters, head and neck straps, [ peel-off lens covers, clamp nozzles, hose clips, ] exhalation valves, exhalation valve guards, [ voice transmitting diaphragms, nozzles with voice transmitting diaphragms, lens replacements, pressure gauges, and pressure relief valves for respirators, ] all for use with respirators other than for artificial respiration sold together as...