An N95 mask is an abbreviation for air respirator that meets the U.S. National Institutes of Health (NIH) Occupational Safety and Health Act. It is designed to protect the human against dust and other airborne particles. An N95 mask is usually worn in the workplace where there are a variety of dangerous materials being used, such as paint, solvents, and other products. An N95 mask is an important part of the safety equipment that is required by the OSHA, the national organization that regulates the workplace.