An N-95 mask filters out about 95% of environmental contaminants and internal pathogens. These N-95 masks are most effective when used in smog, dust allergies, and pandemics like COVID-19. There are different industrial grade varieties of N-95 masks available in our online stores like the Honeywell and the particulate respirator. For a more all-day comfortable fit, the BACOU-WILLSON 801 is a great choice. If you want to know then please visit our online store all over the world which is providing global delivery.