Wikipedia @lemmy.world dantheclamman @lemmy.world 6mo ago Corsi–Rosenthal Box (DIY air filter design) en.wikipedia.org Corsi–Rosenthal Box - Wikipedia 1 crossposts Empowering people to do the impossible @slrpnk.net greengnu @slrpnk.net 2y ago Smoke or airborne disease? en.wikipedia.org /wiki/Corsi%E2%80%93Rosenthal_Box
