Sidenote: super wild how as soon as the media stopped showing the protests, it felt like the protests stopped when in reality they’re still very prominent. Something to be said there about perception, media influence & control, how easily warped narratives can feel like reality.
What does a mask do? Blocks respiratory droplets coming from your mouth and throat.
Two simple demos:
First, I sneezed, sang, talked & coughed toward an agar culture plate with or without a mask. Bacteria colonies show where droplets landed. A mask blocks virtually all of them.