OX-ON Mask FFP2NR D foldable with Valve Comfort is the safety-approved dust mask with valve that you can use when working with harmful, dry particles and liquid aerosols with a limit of <5 mg/m3. Among other things, the mask can be used when sanding wood, metal, stone, plastic, and lead/copper-free paint, as well as spray painting with water-based paint. There is a valve built into the mask, which significantly reduces moisture and heat in the mask. The moldable integrated nose clip gives you an optimal mask fit around your nose. 20 masks per box.