Scientists Tested a DIY Air Cleaner – And It Beat Expensive Filters

Low-cost, DIY air purifiers are proving to be just as effective as expensive commercial units at protecting indoor spaces from wildfire smoke and airborne viruses. Designed during the COVID-19 pandemic, the Corsi-Rosenthal Box uses simple materials – HVAC filters, a cardboard frame, and a fan – to clean air in homes, schools, and offices. Wildfire […] Read More