The 3M 8212 particulate welding respirator is designed for welding soldering and other operations where metal fumes are present. This respirator features a 3M Cool Flow Exhalation Valve standard noseclip comfortable foam faceseal adjustable straps and advanced electret media. The filter also contains cake-resistant media which is designed to make breathing easier by reducing the amount of particles building up on the respirator. For areas with an oil mist use an R or P respirator. Flame resistant per ASTM D2859-96.