Wearing a face mask is not an iron clad guarantee that you won’t get sick – viruses can also transmit through the eyes and tiny viral particles, known as aerosols, can still penetrate masks. However, masks are effective at capturing droplets, which is the main transmission route of coronavirus, and some studies have estimated a roughly five-fold protection versus no barrier. If you are likely to be in close contact with someone infected, a mask cuts the chance of the disease being passed on. If you’re just walking around town and not in close contact with others, wearing a mask is unlikely to make any difference.
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one interesting note from the article:
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Claim: ‘Face masks don’t work’
Wearing a face mask is not an iron clad guarantee that you won’t get sick – viruses can also transmit through the eyes and tiny viral particles, known as aerosols, can still penetrate masks. However, masks are effective at capturing droplets, which is the main transmission route of coronavirus, and some studies have estimated a roughly five-fold protection versus no barrier. If you are likely to be in close contact with someone infected, a mask cuts the chance of the disease being passed on. If you’re just walking around town and not in close contact with others, wearing a mask is unlikely to make any difference.
The droplets will also hit your eyes. Masks work in conjunction with other PPE and primarily by capturing outbound droplets