SPEEDGLAS AWS617820 3M™ Speedglas™ Welding Helmet G5-01TW with Heavy-Duty Adflo PAPR The all-new 3M™ Speedglas™ Welding Helmet G5-01 TW with Heavy-Duty Adflo PAPR is a feature-packed, upgraded version of the hugely popular 3M Speedglas 9100 FX Air, with a stack of new technology. Benefit from a larger viewing area with superior optics and a 15% larger clear grinding...