TEACHERS. If you're heading back to the classroom soon, are concerned, and would like additional protections, I have 2 quick things you can do:

1⃣ Better masks

2⃣ Portable air cleaner w/ HEPA filter

Details and tips for you in this thread

1/n pic.twitter.com/cPfHOufBam

— Joseph Allen (@j_g_allen) February 6, 2021