3M 9504 - N95 Dust Pollution Mask has a specialty of filtering pm 2.5, pm 10, dust and allergen. Due to its ability to folding the mask, the user can easily carry the mask. The anti-pollution mask also has 3M cool flow exhalation valve to avoid building up of heat and carbon dioxide within the cover. It is extremely relaxable and best in a similar class of mask. It has a metal nose clip and elastic headbands for offering extra comfort and a secure fit to the wearer. It is a European standard en approved mask that ensures 95% of air filtration. It is made up of non-woven fabric material. 3M dust mask is combined with features like low breathing ability, resistance with effective filtration for consistent performance.