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
I thought it was for filtering weed smoke, designed by the famous grower and strain creator Ed Rosenthal.
That a good idea ! Didn't think about it.
well..
hope you can keep up!
Yeah may be a little overkill