The ability of face masks to reduce transmission of microbes.
Parthasarathi KalaiselvanShyam Sunder TummanapalliAjay Kumar VijayPrateek BahlChandini Raina MacIntyreMark Duncan Perry WillcoxPublished in: Clinical & experimental optometry (2021)
Face masks effectively reduce the transmission of microbes in laboratory tests. Face masks made with seven layers were very effective at stopping transmission of S. aureus in all aerosol particle sizes. However, face masks become rapidly contaminated during wear. If masks are to be re-used, they should be regularly replaced or appropriately washed.