Cloth masks can carry virus and in universal practice are meant to protect others from you. Here’s a simple design for one with added filter. Pull out filter, wash mask, and replace with new filter every use. Wash hands after handling. Stay in as much as possible. https://twitter.com/evolutionarypsy/status/1244608593715965952
You can follow @evolutionarypsy.
Tip: mention @twtextapp on a Twitter thread with the keyword “unroll” to get a link to it.

Latest Threads Unrolled: