Sure it's easy to make a Corsi Rosenthal Box filter, but how well do they work? I test 3 different configs of this staple of DIY engineering. I also add some legs to the design so that I can max out the performance with a 5th air filter!

You can buy this as a tape-free kit!
https://www.etsy.com/listing/1373712349

__SHOPPING LIST - These link help support the channel! __

FANS
Lasko 20in Box Fan (best price):
https://amzn.to/3c3nVNF
Air King 20in Box Fan (best performance):
https://amzn.to/3Tbzl1O


MERV 14 FILTERs
Nordic Pure 20x20x1 (12 PACK):
https://amzn.to/3O6GGgr
(currently these are more expensive than when I filmed this a month ago)

Nordic Pure 20x20x1 (6 PACK):
https://amzn.to/3o5Ge7E

MERV 13 FILTERS
3M Filtrete 20x20x1(4 pack)
https://amzn.to/3hUCPbV

MERV 12 FILTERS
Nordic Pure 20x20x1 (6 Pack):
https://amzn.to/3O6HaTN

MERV 8 FILTERS
Nordic Pure 20x20x1 (6 Pack):
https://amzn.to/3Rz9T6G


GAFFER TAPE
Better than duct tape for this use
https://amzn.to/3AR6E4Q


Buy literally anything on amazon at this link to help support the channel!
https://amzn.to/3vdlIqj

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I'm on Patreon!!! The reward levels are very basic for the time being but I promise to bring merch and other perks in the future.
  / the3dhandyman  


The 3D Handyman is a production of 2 Point Media. Stay classy, folks!