alt Hacker NewsWearing masks while outdoors is very important for combating air pollution alone. If you don't know what air pollution does to people, see https://youtu.be/KwTR1FX-NPA and optionally https://youtu.be/51AFRAwu8-Y.
Wearing masks while outdoors is very important for combating air pollution alone. If you don't know what air pollution does to people, see https://youtu.be/KwTR1FX-NPA and optionally https://youtu.be/51AFRAwu8-Y.