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Although I suspect supplies will be hard to find, here's instructions on building a HEPA purifier (Corsi Rosenthal Box). A good chunk of Ventura County is unhealthy air tonight, and it would be useful to have one or two of these running to protect your lungs. #airquality #AQI #CorsiRosenthalBox

https://engineering.ucdavis.edu/news/science-action-how-build-corsi-rosenthal-box

Science in Action: How to Build a Corsi-Rosenthal Box

Learn how to build a Corsi-Rosenthal box. The device was created to provide significant reduction in the amount of virus-laden, aerosol particles that are in the air. Follow along as Dean Richard L.
College of Engineering
#airquality #aqi #CorsiRosenthalBox
mwguy
Looks like I need to upgrade my homemade air filter game.
AI6YR Ben
I'm going to build one with PC fans, just ordered the parts. The box fan ones are very effective, but they are loud.
David Vasandani
A BOM and a photo when you’re done!
Texan_Reverend
I have a pinned thread about CR Boxes that includes info on building PC fan versions:
https://kind.social/@Texan_Reverend/112432142624648275

As for materials:

16"x25" (or larger) Filtrete filters
https://costco.com/3m-2500-series-filtrete-1-filter-4-pack.product.4000181409.html

Arctic P14 fans
https://amazon.com/dp/B07HC9ZWDN

Power supply
https://amazon.com/dp/B0BLMF8GMC

Splitter cable
https://amazon.com/dp/B01EF9OI0O

#6-32 screws
https://amazon.com/dp/B0BYDNH34T

#6 nuts & washers
https://amazon.com/dp/B0B1DW9LDF

Duct or painter tape

The attached photos show a CR Box I built using PC fans.
The top panel of a Corsi Rosenthal Box air cleaner. There are five PC fans mounted to a square cardboard panel with circular holes cut into it for the fan air to flow through. One fan is mounted in the center of the square, and the other four are in the corners.
A view of the entire Corsi Rosenthal Box from an angle which makes two of the four filter sides visible, along with the fan panel on top. The sides are all held together with blue painter's masking tape.

Texan_Reverend (@Texan_Reverend@kind.social)

Attached: 1 image Today, I was asked about effective air cleaners, because wildfires have already begun to flare in North America.
Be More Kind
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