alt.hn

7/29/2026 at 1:40:36 PM

Does Your Home or Classroom Need an Air Purifier? Make a Corsi-Rosenthal Box

https://www.npr.org/sections/back-to-school-live-updates/2021/08/26/1031018250/does-your-kids-classroom-need-an-air-purifier-heres-how-you-can-make-one-yoursel

by ck2

7/29/2026 at 4:19:35 PM

Cleaning the air is good.

PC fan boxes are a quieter option too: https://itsairborne.com/pc-fan-corsi-rosenthal-guide-a611dab...

(Incidentally, PC fans can also be used to pull/push air through N95/FFP2 masks.)

by AnthonBerg

7/29/2026 at 1:41:28 PM

* https://media.npr.org/assets/img/2021/08/25/corsi_box-design...

* https://media.npr.org/assets/img/2021/08/25/corsi_instructio...

* https://EdgeCollective.io/airbox

* https://reddit.com/r/crboxes

by ck2

7/29/2026 at 2:36:16 PM

[dead]

by salemh