Concerns rise as COVID cases climb again... With about 46% of the U.S. population living in a community the Centers for Disease Control and Prevention now considers to have "high" COVID-19 transmission, health experts are urging caution.
Which masks protect against delta COVID-19 variant?... The quality of the mask does matter. So if you can get your hands on a KN95 or N95 mask, that’s going to afford you a lot more protection." The agency also warns that about 60% of KN95 masks in the U.S. are counterfeit, and do not meet National Institute for Occupational Safety and Health (NIOSH)