3M paint sanding valved respirator/mask is used for non-harmful dusts from sanding, grinding, sawing and insulating particles. Featuring 3M Cool Flow valve technology, the 3M paint sanding valved respirator offers heat reduction and easy exhalation. Easy-to-use and comfortable, the 3M paint sanding and fiberglass valved respirator is a great choice in respiratory protection for both the professional and the DIYer