this post was submitted on 08 Jul 2025
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Mildly Interesting

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I recently stayed in an apartment that didnt have central air so I created a corsi-rosenthal box since the smoke from the Canadian wildfires were so bad.

After 30 days of continuous use, with very minimal periods of it being turned off, this is what the filters look like!

It's disgusting yet also so satisfying to see the filters get darker from debris, dust, and dirt.

Edit: typos

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[–] [email protected] 15 points 2 days ago* (last edited 2 days ago) (14 children)

I thought it was for filtering weed smoke, designed by the famous grower and strain creator Ed Rosenthal.

[–] [email protected] 2 points 2 days ago (2 children)

That a good idea ! Didn't think about it.

[–] [email protected] 8 points 2 days ago (1 children)

well..

A 2022 study found the clean air delivery rate on the five-filter design was between 600 and 850 cubic feet (17–24 m3) per minute (depending on fan speed), costing roughly a tenth of commercial air filters.

hope you can keep up!

[–] [email protected] 1 points 2 days ago

Yeah may be a little overkill

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