3M has upgraded its Adflo Powered Air Purifying Respirator (PAPR) system. The 3M Adflo Turbo Assembly with High-Altitude Upgrade provides continuous filtered air to welders working at altitudes of up to 10,000 feet. It was designed specifically to compensate for air-density changes that occur with an increase in elevation. High-altitude PAPR upgrade

3M, www.3M.com/PPESafety, 800-328-1667. Booth 1401.