CR Boxes

Posting threads from the CR Boxes subreddit. CR Boxes are DIY air purifiers that clean the air more efficiently and quieter than commercial HEPA purifiers.

[Nukit @NukitToBeSure]

The Nukit Tempest - PC Fan CR-Box Kit
Coming soon!

All-metal, buy-it-for-life construction.
Uses standard, low-cost, non-proprietary, 2”x20”x20” furnace filters.
Uses all standard, easily replaceable PC parts- screws, fans, grills etc.
Great STEM-Ed project- just like assembling a PC enclosure.
Any local PC shop can assemble, repair, and customize them.
12v DC input.
Optional mounting point for Mean Well AC power supply.
Optional mounting point for our CO2 sensing PWM fan control board.
Optional power loss alarm to discourage unplugging.

Steep discount for group buys and schools!

Specs and CADR depend on configuration. Pricing to be determined.

Visit the link below and click "Notify When Available" to reserve your place in line and be notified when it's in stock. First batch is always limited.
https://t.co/AcYhU5m67g

Huge thanks to @Vailima1 for contributing his design, which we were then able to build on.

If you want a PC Fan CR-Box right now or you want to buy 🇺🇸, visit the folks who figured all this out at- @cleanairkits

[Edderic Ugaddan 💜 @eddericu]

3D printed air cleaner, inspired by @robwiss's experiments. 9 Arctic P14 fans, 1 Lennox MERV-13 19L14 20"x20"x5" filter. I added a handle for easier carrying. Front and back. Estimated CADR by @robwiss from his build was 376 CFM 🧵(1) https://t.co/DS1X8mwpF7

[CR Boxes @CRboxes]

"News from the Taobao prebuilt CR box. They have a new model and it's ridiculous (in a good way)"

by a12223344556677 via: https://t.co/DPRw3tAAVI

[CR Boxes @CRboxes]

"My recommended changes to the standard Corsi Rosenthal box design"

By jhsu802701 via: https://t.co/mzVcFYIPua

[CR Boxes @CRboxes]

@dgleich Will you be making more versions of these? Do you remember the total cost?

[CR Boxes @CRboxes]

@0seiler These are amazing, you should share them to the subreddit https://t.co/DmJnhIZCCw

[CR Boxes @CRboxes]

@0seiler Do you have a video breakdown of you building them?

[CR Boxes @CRboxes]

Jim Rosenthal (@JimRosenthal4) tests PC-fan CR Boxes

https://t.co/5BVBEqGcHX

[CR Boxes @CRboxes]

Current list of Corsi-Rosenthal Box / DIY air cleaner research papers via https://t.co/DmJnhIZCCw https://t.co/KUMQX6W5GL

[CR Boxes @CRboxes]

CPU blower fan via https://t.co/DmJnhIZCCw https://t.co/RquDxFYbzA

[CR Boxes @CRboxes]

Mesh bag for carrying small Corsi Rosenthal box via https://t.co/DmJnhIZCCw https://t.co/k7RU6BMh9q

[CR Boxes @CRboxes]

CR Box Instructions in EN, DE, ES and FR via https://t.co/DmJnhIZCCw https://t.co/QUzGkdsw6u

[CR Boxes @CRboxes]

Clean Air Kit CR box questions via https://t.co/DmJnhIZCCw https://t.co/fFFCgro6re

[CR Boxes @CRboxes]

CDC's Ventilation guide updates DIY Air Cleaners section via https://t.co/DmJnhIZCCw https://t.co/lkqKpLHzLg

[CR Boxes @CRboxes]

Colour me impressed, these things are fantastic! via https://t.co/DmJnhIZCCw https://t.co/iX5qmFZWZI