Tactical 40mm Mask Filter- Emergency Preparedness, Industrial Use, Painting, Welding Prep, Halloween Mask, Upgraded Premium Black 40mm Filter, Sealed

About this item FITS 40MM MASKS- Fits any standard 40mm fitting Industrial Use, Prepping, Welding, Painting, Emergency Mask, Halloween 1 PREMIUM BLACK FILTER- 40mm High Grade Premium Charcoal NEW Filter that can absorb various impurities FILTER USED IN VARIETY OF WAYS- Charcoal is carbon & Activated charcoal is charcoal that has been treated with oxygen to open up millions of tiny pores between the carbon atoms. The use of special manufacturing techniques results in highly porous charcoals that have surface areas of 300-2,000 square meters per gram. Charcoals are widely used to adsorb odorous or colored substances from gases or liquids