DESCRIPTION N95 is an industrial manufacturing standard meaning our masks are effective against 95 percent of particles with a mass median diameter of 0.3 micrometers or larger. Properly worn masks can protect very well against PM10, PM2.5, and smaller particles. BACTERIA AND VIRUSES Can help reduce exposure to biological substances, such as bacteria and viruses. Please note however that wearing a mask cannot eliminate the risk of infection as it depends on the proper fit of the weare. POLLEN Can protect you from pollen. Our filter has an efficiency of above 95% at 0.3 μm particle size, whereas normal pollen particles are about 10 - 1000 μm in size. ANIMAL ALLERGENS Can protect you from animal allergens. Our filter has an efficiency of above 95% at 0,3 μm particle size, whereas animal allergen particles are about 5 - 10 μm in size.