For use with Miller ML00894 and ML00895 Half Mask Respirators. Replacement Filters. Pack of 2 Provides 99.97% filtration of airborne particles and oil aerosols. 99.97% Filtration of Airborne Particles P100 filters are strongly resistant to oil and provide filtration of airborne particulate including solid dust particles, metal fumes and mists. Wrap around spark guard protects filter media from sparks and other debris. Ideal Protection for most welding applications Filters provide protection from Hexavalent Chromium (Stainles Steel), Zinc Oxide (Galvanized Steel), Maganese, Aluminum, Nickel, Iron Oxide, Copper, Cadmium, Lead and Berylium fumes. Exclusive Filter Design Pleated filter design allows for greater surface area to ease breathing resistance. Patented filter media maximized efficiency regardless of humidity, extending filter life.