3M Speedglas Fresh-Air III Supplied Air System with V-200 Vortemp Air-Heating valve and Speedglas Welding Helmet 9100 FX-Air, 26-5802-10SW with SideWindows and Auto-Darkening Filter 9100V, Shades 5, 8-13
Welding respiratory protection system featuring the V-200 temp-air valve. Lightweight belt-mounted valve permits welders to raise the temperature of air entering headpiece by up to 50°F (28°C).