3M™ Paint Sanding Valved Respirator, used for non-harmful dusts from sanding, grinding, sawing and insulating particles, are NIOSH approved and provide at least 95% filter efficiency against solid and liquid particles that do not contain oil. Using 3M™ Cool Flow™ Exhalation Valve technology, the 3M™ Paint Sanding Valved Respirator offers heat reduction and easy exhalation making wearing the respirator over longer periods of time more comfortable. The m-noseclip feature allows for fewer pressure points on the face and greater comfort while the advanced filter media makes for easier breathing.