It’s because they work opposite to the way people think they do. It’s to prevent the wearer from spreading any disease they might have, not to prevent the wearer from getting the disease.
Disclaimer: I understand this depends on the mask type, and I’m specifically talking about the ones stereotypically seen in hospitals(not the n95s).
It’s because they work opposite to the way people think they do. It’s to prevent the wearer from spreading any disease they might have, not to prevent the wearer from getting the disease.
Disclaimer: I understand this depends on the mask type, and I’m specifically talking about the ones stereotypically seen in hospitals(not the n95s).
Conventional wisdom agrees with you. But it's not a one way screen.