Counterfeit N95 masks are flooding the market—here’s how to know if yours is real”The best use for N95 masks are in health care, where aerosol-generating procedures are done that may put health care workers at risk for aerosolized transmission,” Shruti Gohil, MD, professor of medicine and associate medical director epidemiology and infection prevention with UCI Health, tells Health. … What’s more important is ensuring your mask fits well and is comfortable to wear, Dr. Gohil says. “Choose a mask that you’re likely to wear and keep it on whenever you are in public, and try not to fidget with it” she advises.