3M Speedglas Fresh-Air III Supplied Air System with V-100 Vortex Air-Cooling valve and Speedglas Welding Helmet 9100-Air, 25-5702-10SW with SideWindows and Auto-Darkening Filter 9100V, Shades 5, 8-13

Welding respiratory protection system featuring the V-100 cool-air valve. Lightweight belt-mounted valve permits welders to lower temperature of air entering headpiece by up to 50°F (28°C), ideal for hot, strenuous jobs.

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