New York Times: Does My Mask Protect Me if Nobody Else Is Wearing One?
New York Times: Does My Mask Protect Me if Nobody Else Is Wearing One?. “It’s true that masks work best when everyone in the room is wearing one. That’s because when an infected person wears a mask, a large percentage of their exhaled infectious particles are trapped, stopping viral spread at the source. And when fewer viral particles are floating around the room, the masks others are wearing would likely block those that have escaped. But there is also plenty of evidence showing that masks protect the wearer even when others around them are mask-free. ”