First-Ever Published Study Reveals How Poorly KN95 Masks Fit, Seal and Protect vs. a Leading N95…
WEST BRIDGEWATER, Mass., Jan. 24, 2022 (GLOBE NEWSWIRE) -- NIOSH-approved N95 filtering facepiece respirators may provide as much as 70 times better protection compared with Chinese-standard KN95 masks, according to study data released…