3M 8833 FFP3 Cup-Shaped Valved Dust/Mist/Metal Fume Respirator Box 10

3M Cool Flow valve reduces heat build up to offer comfortable protection, particularly in hot and humid conditions. Soft inner face-seal ring provides secure face fit and increases wearer comfort. Reliable, effective protection against fine particulates. Cleanable sealing ring and additional testing allows use for more than one shift. Assigned Protection Factor 20