According to the National Institute for Occupational Safety and Health (NIOSH), the federal agency charged with testing, recommending and approving respirators and other protective equipment used in the workplace, about 5 percent of U.S. workers wear respirators at least some of the time while performing their jobs.
Safety watch: The right respirator
Air-purifying respirators include: N95 filtering facepieces (upper left); half-face respirator with P100 filters (bottom); full-face respirator without cartridges or filters (right).
