Disposable respirator faces have been the focus of increased attention since the outbreak of the H1N1 virus. However, they have been around for many years and have been used for occupational safety. N95 is a National Institute for Occupational Safety and Health rating. It is given to masks that comply with a minimum standard for particle transmission. The N95 respirator mask filters up to 95% airborne particles of 0.3 microns and larger that could otherwise enter the nose or mouth. People with contagious illnesses may also use these masks to stop particles from entering their nose and mouth and putting others at danger. Although they do not prevent particle transmission with 100% accuracy these masks can help to prevent the spread of infection.

To make it easier to breathe, N95 masks are available with or without a valve. The best protection is when the respirator mask fits tightly to the face, covering the nose as well as the mouth and leaving no gaps along the edges. The respirator mask should be properly fitted to the wearer. It shouldn't be blocked by jewelry or facial hair. Poorly fitted respirator masks are more likely to allow air particles into the mask's edges, resulting in lower protection against inhalation and spread.

For occupational safety, respirator masks are used widely in industries and hospitals. NIOSH-approved masks must be worn in the workplace. This means they must meet the minimum standards set forth by the National Institute for Occupational Safety and Health.

When purchasing respirator masks, it is important to consider the intended purpose. Different types of respirator masks are made for different purposes and provide different levels of protection. You should also consider whether the mask contains latex. This can be an allergen. There are N95 respirator masks that do not contain latex, and they will be clearly marked.