DYI Air Purifier for Wildfire Smoke
Facing the worst air quality in recorded history (and my air purifier temporarily inaccessible in storage) I built my own today using Eric’s COVID Air Defense System kit, also known as a Corsi-Rosenthal Cube. It works for wildfire smoke as well as for Covid.
I followed these instructions to build it: https://encycla.com/Corsi-Rosenthal_Cube
I was able to have the MERV 13 filters delivered the same day by Instacart so I didn’t have to leave my apartment.