3M Speedglas supplied air (SA) respiratory system. Includes V-100 Vortex air cooling valve, belt, breathing tube and complete 9100 FX-Air helmet assembly including 9100 XXi auto darkening filter (ADF). Flip front welding shield allows for a clear, wide view protective visor for grinding and setup. Lightweight valve can lower temperature of air entering headpiece by up to 50 deg F (28 deg C). Designed for hot, strenuous jobs. The 3M Speedglas welding helmet 9100 FX-Air features flip-up assembly for grinding and prep work. 8 x 4-1/4 in clear visor viewing area (approx). Side windows - shade 5 side filters that increase peripheral vision. Ergonomic, adjustable head suspension for increased comfort, helmet stability and weight distribution. Auto darkening filter 9100 XXi - compatible with 3M Speedglas auto darkening filters 9100V/9100X/9100XX/9100XXi. When used with a compatible 3M Speedglas auto darkening filter Series 9100, this is a NIOSH approved system and meets ANSI Z87.1-2010 high impact. Storage bag and welding cap included.