It's probabilistic, like everything, but N-95 masks do protect the wearer from particles that small. The CDC purposefully lied to you so that you wouldn't stock

It's probabilistic, like everything, but N-95 masks do protect the wearer from particles that small. The CDC purposefully lied to you so that you wouldn't stockpile masks they (understandably) wanted to use elsewhere. /https://www.semanticscholar.org/paper/Filtration-Performance-of-NIOSH-Approved-N95-and-4-Rengasamy-King/8f63960853a17efa45bdf5353f2daf5d305c7c0f https://www.semanticscholar.org/paper/Filtration-Performance... >Consistent with single-fiber filtration theory, N95 and P100 respirators challenged with silver monodisperse particles showed a decrease in percentage penetration with a decrease in particle diameter down to 4 nm.