
Removing infectious aerosols and wildfire
smoke particles from indoor air has been a DIY,
community-led project since August 2020, when
Dr. Richard Corsi and Jim Rosenthal designed
the Corsi-Rosenthal Cube. Now colloquially
known as a Corsi box, these DIY air purifiers
have been adapted by indoor air quality (IAQ)
experts and validated as an effective air cleaning
method by several peer-reviewed studies. They’re
easy to make and they work better than some
commercial units!
The robust performance of Corsi boxes is
largely due to the electrostatic charge (which
attracts particles) and large surface area
(pleated/accordioned into a compact size) ...