An N95 face mask may remove up to 95% of pollutants, allergies, and other contaminants from the air you inhale. Wearing a N95 mask every time you leave the house is suggested by several doctors as a prophylactic measure against the swine flu, common cold, and other viral diseases. These can also be worn in applications and areas, such as spray-paints or paintings, dyeing, garages, mining, electronic assistance and food industries, sanitizing, unsanitary workshops. There are no external filters needed because the filters are incorporated into the mask. This is also a reusable mask that does not need to be discarded right away.