Corsi–Rosenthal Box (DIY air filter design)
Corsi–Rosenthal Box (DIY air filter design)
I first saw one of these 19 years ago. These two shit bags attaching their names to this design are nothing more than clout chasers.
Was it a 5-filter design? Like a big box? I'd personally love to add it to article if there's documentation of them
We used it to clean cigarette smoke from the bar before we could afford huge ionizers. Nobody took pictures because it wasn't anything special and was basically common sense.
But 2 decades later apparently you need to be an engineer to figure it out? This is what happens when you teach kids to pass a test but don't bother to teach them how to think.
Yes it was a five filter design. It was a cool thing at a house I partied at occasionally. The most official documentation might be it pictured at one of those parties. They used it to clean smoky basement air.
University of Michigan Medicine published an instructional video on this in 2011[4] and there are many online discussions and DIY blog posts predating 2020[5]
Indeed.
Both those links are about 1-filter designs though. This is a five filter design which performs better than the sum of its parts. Couldn't find any sources on that existing earlier, should be added to the article if so
Edit: found an imgur from 2018. https://imgur.com/gallery/hepa-filter-companion-cube-box-fan-jtECP9C
Found a triangle from 2012 https://marshallhansendesign.com/2012/01/02/studio-operations/
Unfortunately both those sources are not sufficient for Wikipedia
its a great way to make a quick filter on the cheap without paying the markup for the trangely dimensioned filters of commercial air filter machines. You can put more or less money on the actual filters depending on what you need to filter too. I have like 6 or 7 of these going between my workplace and home. some are set up with construction dust in mind, a couple to get the smoke from outside at work which gets in when doors are left open, and the rest for pet dust.
If only I knew where to buy filters in Germany. All I can find is replacement filters for all kinds of air purifiers. I can't imagine that they aren't marked up compared to "generic" filters.
You don't use forced-air furnaces with furnace filters?
Same problem in Australia, but I've recently found out that IKEA sells large rectangular filters that look like they might work.
If anyone needs video confirmation, Rtings made a video comparing the box to commercial air purifiers.