Scientists Test Which Masks Work Best by Filming People Coughing And Sneezing in Them - ScienceAlert 28-Jul-2020

Scientists Test Which Masks Work Best by Filming People Coughing And Sneezing in Them - ScienceAlert

If you're not sure whether wearing a face mask is worth it, or you need to wear a mask but are unsure which type, our new research should help you decide.