Long Covid Advocacy💙 on TwitterFun & fab video on building a #CorsiRosenthalBox by @geoffberner#CleanAir #Ventilation Full video 👇👇👇 in Geoff's tweet#Clean Air#VIdeo#Discussion#Corsi-Rosenthal box#Useful·twitter.com·Jul 20, 2023Long Covid Advocacy💙 on Twitter
