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passwordoops04/02/20251 replyview on HN

Even cheaper is the DIY Corsi-Rosenthal box. We make a couple every few months and it does make a huge difference! Worked wonders during the wildfires a couple of years ago

https://cleanaircrew.org/box-fan-filters/


Replies

ajollylast Thursday at 1:10 AM

Even better is a computer fan based cr box. Quieter, lower TCO etc.