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#corsirosenthalbox

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trendless<p>🔗 <em>Guest host Laurie Hoogstraten spoke with one of the inventors of a DIY air purifier (Dr. Richard Corsi), and found out how it could help with wildfire smoke</em> <a href="https://www.cbc.ca/listen/live-radio/1-111-up-to-speed/clip/16161255-how-diy-air-purifier-help-deal-wildfire-smoke" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cbc.ca/listen/live-radio/1-111</span><span class="invisible">-up-to-speed/clip/16161255-how-diy-air-purifier-help-deal-wildfire-smoke</span></a></p><p><a href="https://zeroes.ca/tags/CovidIsAirborne" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CovidIsAirborne</span></a> <a href="https://zeroes.ca/tags/CorsiRosenthalBox" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CorsiRosenthalBox</span></a> <a href="https://zeroes.ca/tags/CRBox" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CRBox</span></a></p>
RÆVN<p>I made a <a href="https://fosstodon.org/tags/CorsiRosenthalBox" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CorsiRosenthalBox</span></a> using 4 Arctic P14 fans. I can't feel much of a draw when placing my palm against the filter. Anyone know if this is normal?</p><p>You don't get many box fans here in the UK!</p>
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AI6YR Ben

Analysis of these kinds of systems (from the "Rosenthal" of Corsi Rosenthal). These filters have been exceptionally useful both for wildfires (removing toxic smoke and particulates after the recent LA wildfires), as well as plague-of-the-day (COVID-19, influenza, RSV, threat of bird flu now here...). Also just generally good to keep the air pollution in your house to a minimum!

texairfilters.com/comparing-th

#corsirosenthalbox#airquality#aqi
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Covid-Safe Scouts

Covid-Safe Scout Proficiency Badge No.3
DIY a Corsi-Rosenthal Box
This recipient understands how to improve ventilation with air purifiers and has constructed at least one CR box using MERV-13 filters and a box fan.

Wanna earn this badge?
Use these links to learn how to build your own air purifier using fans and filters
🔗 Clean Air Crew - DIY box fan filters – Corsi-Rosenthal box: cleanaircrew.org/box-fan-filte
🔗 Dr. Richard L. Corsi - How to Build a Corsi-Rosenthal Box: youtube.com/watch?v=hIuH-2naoz
🔗 It’s Airborne - Building a PC Fan Corsi-Rosenthal Box: itsairborne.com/building-a-pc-
🔗 Airbon - UK DIY Air Purifiers: airbon.co.uk/post/diy-air-puri
• Find more useful resources about air cleaning: covidsafescouts.com/research.h

Already a seasoned Precautionista?
• Save the badge PNG to your device.
• Share this post and/or your badge on your favourite socials
• Reply with #CovidSafeScouts to share your CR Box mods
• Collect all the Covid-Safe Scout badges: covidsafescouts.com/badges.htm

circle badge with Corsi-Rosenthal box comprised of square HEPA filters on the sides and a square box fan on the top
#CRbox#CorsiRosenthalBox#CleanAir
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AI6YR Ben

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

engineering.ucdavis.edu/news/s

College of Engineering · Science in Action: How to Build a Corsi-Rosenthal BoxLearn 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. Corsi, co-inventor, shows you the major components of this device, and how to build one.
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DoomsdaysCW

This article has some helpful tips for folks who don't have air conditioning, but have fans. I would add that if you're in an area prone to #wildfire smoke, either build a #CorsiRosenthalBox or invest in a box fan with a removable filter. Also, it's not a bad idea to have a couple of battery operated fans on hand as well -- in case of #PowerOutages.

How to Properly Cool Your Home With a Fan

By Matt Fuchs
June 5, 2024 8:00 AM EDT

"Hot weather is a major threat to health, and this summer is on track to be even hotter than usual. Air conditioning is a lifesaver in these conditions, but a much older technology could protect your safety, your budget, and even the planet. Keeping cool over the next few months could revolve around the blades of a refreshing fan."

Read more:
time.com/6985139/how-to-use-fa

Time · How to Properly Cool Your Home With a FanBy Matt Fuchs
#ExtremeHeat#ClimateChange#ExtremeTemperatures
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Texan_Reverend

With a box fan, the cardboard box it comes in is already a perfect size to use one face as the floor of a #CorsiRosenthalBox and the other face as the fan shroud.

For the PC fan version, you can use the manufacturer's cardboard box that the Costco 4-pack of Filtrete filters comes in the same way - one face gets cut to size for the floor, and the other face gets cut to the same size for the top but with holes added where you mount the PC fans. You could maybe double the top for more rigidity.

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Texan_Reverend

A quieter alternative to the traditional box fan for a #CorsiRosenthalBox is to mount 5 or 6 Arctic P14 PST computer fans under a piece of cardboard/foam core/poster board instead. (They come in 5-packs.)
It can increase the initial cost a bit, but I feel the ability to comfortably run the unit 24/7 makes up for it.

To power the fans, you need a 12v fan power supply like this:
amazon.com/dp/B0BBSBV9CF

Mounting screws should be #6-32 x 1-3/4" with #6-32 hex nuts and optional #6 washers.

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Photo of a Corsi-Rosenthal Box DIY air cleaner sitting on a wood floor. For the top panel, six PC fans are mounted under a piece of black poster board with individual fan grills on top.
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Texan_Reverend

Today, I was asked about effective air cleaners, because wildfires have already begun to flare in North America.

Extensive global testing has found that a DIY #CorsiRosenthalBox will outperform almost every commercial HEPA unit while costing less to run.

For the US & Canada, the best source of filters to build one is Costco: Filtrete 1900, 2200, or 2500 models with at least one 20-inch dimension.

These units also help mitigate allergens and infectious aerosols like #Covid and Influenza.

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Infographic explaining the materials and steps for assembling a Corsi-Rosenthal Box air cleaner. It is made of four HVAC filters for the side panels, a piece of cardboard for the floor under them, and a box fan placed on top with a cardboard shroud panel. All the edges where the different sides meet are taped together with duct tape to keep it rigid and to create an airtight seal. The alt text character limit is too small to include everything. So, if you would like a fully detailed description of the build process and the contents of this infographic, feel free to DM me.
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C.H. Romatowski

I just found out the commercial air filters my public library bought cost $2000 and don’t work as well as a $100 #CorsiRosenthalBox. I mean still better than no filter but 😭😭😭

We gotta get this knowledge into our communities! So in case helpful to US folks, some links:

These filters test really well and are a good deal:
texairfilters.com/4-filter-cor

This is the standard fan: acehardware.com/departments/he

This is a one-page illustrated guide to assembling: corsirosenthalfoundation.org/w

BYO duct tape!

Tex-Air Filters4 Filter Corsi-Rosenthal Box MERV 13 Filters
#Covid
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fritzoids

taking @robwiss 's build with IKEA filters (github.com/robwiss/diy_air_pur) as inspiration, I built this. All the filters on one side of the box so I can hang this above my sofa. This cardboard monstrosity is a prototype to show my partner that it works and I'll re-build it out of PVC boards soon. But! cardboard is an easy to work with material. And it is more easily available and cheaper than some other materials.
Edit: I sourced mine from the recycling bin.
#CorsiRosenthalBox #DIYpurifier #CleanAir

a photo of a cardboard construction with 9 Uppåtvind filters from IKEA on one side and Arctic P14 PWM fans on the other.
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