Tweet from kottke at November 29, 2021 at 07:57AM
Why We Need to Upgrade Our Face Masks — and Where to Get Them. Once more, with feeling: if you’re still using a cloth mask indoors, upgrade your mask (and wear it properly). https://t.co/qkLJnp3Lf9
— kottke.org (@kottke)
Nov 29, 2021
from http://twitter.com/kottke