The CDC is being doubly disingenuous here because ANY mask (N95 = .3 μm or cloth=2.5 μm) WILL prevent smoke particles, and NO mask will prevent coronavirus penetration.
The CDC is being doubly disingenuous here because ANY mask (N95 = .3 μm or cloth=2.5 μm) WILL prevent smoke particles, and NO mask will prevent coronavirus penetration.