3Mâ„¢ Paint Sanding Valved Respirator is used for non-harmful dusts from sanding, grinding, sawing and insulating particles. Featuring 3Mâ„¢ Cool Flowâ„¢ Valve technology, the 3Mâ„¢ Paint Sanding Valved Respirator offers heat reduction and easy exhalation. Easy to use and comfortable.