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Build your own Corsi-Rosenthal Box - DIY Filtration on a Bud... improve indoor air quality and save on air purifiers with a DIY Corsi-Rosenthal Box. CR boxes reduce pollen, dander, dust and dust mites, bacteria, mold spores,

How to Build your own Corsi-Rosenthal Box - DIY Air #Filtration on a Budget buff.ly/KGa1IMj #CorsiRosenthal #HVAC #airpurification #airpurifiers #filters #IAQ #indoorairquality #building #buildings #construction #VOCs #dust #allergies #DIY #greenbuilding #sustainability

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Build your own Corsi-Rosenthal Box - DIY Filtration on a Bud... improve indoor air quality and save on air purifiers with a DIY Corsi-Rosenthal Box. CR boxes reduce pollen, dander, dust and dust mites, bacteria, mold spores,

How to Build your own Corsi-Rosenthal Box - DIY Air #Filtration on a Budget buff.ly/KGa1IMj #CorsiRosenthal #HVAC #airpurification #airpurifiers #filters #IAQ #indoorairquality #building #buildings #construction #VOCs #dust #allergies #DIY #greenbuilding #sustainability

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Picture of my corsi-rosenthal air purifier on the left side of image a clean brand new filter, on the right a very dirty filter.

Picture of my corsi-rosenthal air purifier on the left side of image a clean brand new filter, on the right a very dirty filter.

It's that time of year again when we change the filters on our #corsirosenthal air purifier.
Always amazing to see the difference!
#CleanTheAir

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🙋🏼‍♀️ don’t forget clean the air! That’s proven science. #corsirosenthal

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#Cdnpoli #USpoli
This post by @daniellebeckman.bsky.social is another reason why my spouse and I respirator mask anywhere indoors except for my own home. This is why we have #CorsiRosenthal boxes in our home and why my spouse and I haven't eaten inside a restaurant since early February 2020.

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In Canada that’s been done!
You can find #CorsiRosenthal DIY kits online @donatemask.bsky.social
They sell respirator masks, Aranet C02 monitors and a plethora of other items. The best part is their charitable side, since the pandemic began, they’ve been able to provide free masks to all in need.

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small box built of four filters and a dual computer fan attached by bumblebee themed ducttape

small box built of four filters and a dual computer fan attached by bumblebee themed ducttape

same box with less tape showing a gap between the edge of the fans and the one side's filter

same box with less tape showing a gap between the edge of the fans and the one side's filter

@cleanaircreworg.bsky.social @corsiaq.bsky.social I built this #CorsiRosenthal box with a dual computer fan last night; no extra space on the fan unit. Taped everything in. Gravity pulled the fans in. Here's what I've done, along with pictures of the gap I need to bridge. Suggestions? Thanks.

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Original post on infosec.exchange

In light of the #Wildfire smoke blanketing huge swaths of North America and elsewhere, I’m reposting these instructions on how to build your own #CorsiRosenthal air filter. During the peak of the pandemic a number of designs were developed for low-cost, high efficiency air filters and the CR was […]

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DIY: Make a wildfire smoke filter with these simple steps - The Weather Network Mark Robinson has a hack for making an indoor smoke filter to help with your home's air quality.

Check out Mark Robinson from @weathernetwork.bsky.social making a #CorsiRosenthal box filter - www.theweathernetwork.com/en/video/99J...

@corsiaq.bsky.social @crfoundationus.bsky.social

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We have a #CorsiRosenthal box in the basement. They're great!!!

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Vote Out Covid: community spotlight GFSC's community Discord supports people using technology to futher their social campaigns. Kim caught up with Dave to chat about his Vote Out Covid campaign's goals for the 1st May UK elections, thei...

We got interviewed by @gfsc.community talking about our work, #CorsiRosenthal boxes, #Django web apps, @democracyclub.org.uk and more!

gfsc.community/vote-out-cov...

Remember, you can get involved at voteoutcovid.org.uk before 1st May 2025!

#CovidIsNotOver #UKPol #Covid #LongCovid

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#Airquality matters. All classrooms in schools without high CADR should have their students build #CorsiRosenthal boxes as class projects. #cleantheairweshare

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Original post on mastodon.nl

#CRFoundationUK on X wrote:

New hospital study: air purifiers cut airborne COVID by 98%.
Rooms with HEPA ventilation had zero virus detected.
Clean air is essential public health infrastructure — not a luxury.
Study: sciencedirect.com/science/article/pii/S002... […]

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“SARS-CoV-2 airborne detection within different departments of a COVID-19 hospital building and evaluation of air cleaners in air viral load reduction” The pandemic of COVID-19 has brought in light the necessity for the development of novel detection methods for airborne transmitted pathogens, and the…

New hospital study: air purifiers cut airborne COVID by 98%.
Rooms with HEPA ventilation had zero virus detected.
Clean air is essential public health infrastructure — not a luxury.
Study: www.sciencedirect.com/science/arti...
#CorsiRosenthal #CleanAir #PublicHealth

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wrong, you might have expended more energy than needed, say, worn masks, built #CorsiRosenthal boxes, worn our face shields, or used Covid tests my fellow volunteers made/distributed.
If I'm right, then there is time-delayed damage from Covid. We should still be careful. Prevention is still doable.

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Delighted to spot a #CorsiRosenthal box in a recent episode of This Old House! #COVIDIsAirborne

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Screenshot of email with text: Greetings,

I wanted to reach out to you and say thank you again for making a Corsi-Rosenthal Box for my classroom. This winter break, I replaced all the filters on it. They were FILTHY and filled with dust. It got me thinking about how much a building can make people sick if they don't have proper air purification. My classroom has been healthy, and we have escaped the colds and flus that other classrooms have struggled through.

Thank you again. I can't express how much I appreciate you!

Hope you and (redacted) are well.

Respectfully,

Screenshot of email with text: Greetings, I wanted to reach out to you and say thank you again for making a Corsi-Rosenthal Box for my classroom. This winter break, I replaced all the filters on it. They were FILTHY and filled with dust. It got me thinking about how much a building can make people sick if they don't have proper air purification. My classroom has been healthy, and we have escaped the colds and flus that other classrooms have struggled through. Thank you again. I can't express how much I appreciate you! Hope you and (redacted) are well. Respectfully,

I got an email this morning from my son's teacher last year. How do you eat an elephant? One bite at a time. This is in Missouri, where no one takes precautions.

#COVID #airborne #CorsiRosenthal #CleanTheAir

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x.com

Over at the sad place I repeatedly begged @gavinnewsom.bsky.social & @caloes.bsky.social (& even asked @jensiebelnewsom.bsky.social to give them a nudge) to mass distribute #CorsiRosenthal kits to California's least privileged families.
Still nothing.
Newsom admin could easily have done this.
Fail.

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Welcome - Corsi-Rosenthal Foundation Dedicated to providing cleaner safer air for all.


California friends esp. those neighboring #PalisadesFire

Now is a great time to build a #corsirosenthal box. They are extremely efficient & effective at filtering wildfire smoke.

Every evacuation site needs them.

Apply for a grant here: corsirosenthalfoundation.org

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Welcome - Corsi-Rosenthal Foundation Dedicated to providing cleaner safer air for all.

FYI

California friends esp. those neighboring #PalisadesFire

Now is a great time to build a #corsirosenthal box. They are extremely efficient & effective at filtering wildfire smoke.

Every evacuation site needs them.

Apply for a grant here: corsirosenthalfoundation.org

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Welcome - Corsi-Rosenthal Foundation Dedicated to providing cleaner safer air for all.

@daniellemoodie.bsky.social California friends esp. those neighboring #PalisadesFire

Now is a great time to build a #corsirosenthal box. They are extremely efficient & effective at filtering wildfire smoke.

Every evacuation site needs them.

Apply for a grant here: corsirosenthalfoundation.org

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We picked up a Clean Air Kits Luggable www.cleanairkits.com/products/lug... a while back and it was delivered today.

So far, I'm very impressed. It's quiet and seems to move a ton of air!

#airfilter #purifier #cleanair #diy #crfilter #corsirosenthal

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A cheap plastic box fan with two MERV-13 filters taped to it, forming a triangular prism shape. View of the underside of the fan, which remains open as this part will sit on the floor and won't require covering.

A cheap plastic box fan with two MERV-13 filters taped to it, forming a triangular prism shape. View of the underside of the fan, which remains open as this part will sit on the floor and won't require covering.

Assembled 2-filter Corsi-Rosenthal Box fan. Two MERV-13 filters on the side, with cardboard on the top as well as silver-coloured tape hold the edges and corners together. On the brown carpeted floor lies some extra cardboard, rolls of tape, a steel ruler, and box cutter.

Assembled 2-filter Corsi-Rosenthal Box fan. Two MERV-13 filters on the side, with cardboard on the top as well as silver-coloured tape hold the edges and corners together. On the brown carpeted floor lies some extra cardboard, rolls of tape, a steel ruler, and box cutter.

A single MERV-13 filter, somewhat blackened by nearly two years of use.

A single MERV-13 filter, somewhat blackened by nearly two years of use.

Finished building another #CorsiRosenthalBox today.

The third pic is my older single-filter #CorsiRosenthal Box that's nearly 2 years old now. I'll replace its MERV-13 filter soon and keep using it when I favour quietness over airflow. #CRBox

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Thread by @MarinaC_Dyb on Thread Reader App @MarinaC_Dyb: After 3 long, hard years of tireless work, our cross-campus, multi-discilinary academic team reaching our goal: State of CT support to scale up CR Boxes for every classroom in Connecticu...

Hate to divert from this most excellent platform. But, this is a major win worth boosting. Connecticut goes full on #CleanAir in #Schools
#CorsiRosenthal #WorldVentilateDay #November8

threadreaderapp.com/thread/18498...

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Thread by @MarinaC_Dyb on Thread Reader App @MarinaC_Dyb: After 3 long, hard years of tireless work, our cross-campus, multi-discilinary academic team reaching our goal: State of CT support to scale up CR Boxes for every classroom in Connecticu...

Hate to divert from this most excellent platform. But, this is a major win worth boosting. Connecticut goes full on #CleanAir in #Schools
#CorsiRosenthal #WorkdVentilateDay #November8

threadreaderapp.com/thread/18498...

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Big square filter on side of a box with a fan on top. Duct tape holds it all together.

Big square filter on side of a box with a fan on top. Duct tape holds it all together.

Had all parts to construct one more #CorsiRosenthal box, needed a Round Tuit. When I went outside here in San Gabriel Vly, I smelled bit of smoke from #LineFire (50 mi away), Someday became Now. Nice for the room w older drafty windows.
Good vs Covid, Good vs smoke.
Room air → filters, clean air ⬆️

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Ventilation Resources Ventilation Resources WHY/Justification for Ventilation & CR Boxes effectiveness: Why this is all important! https://www.reuters.com/world/europe/italian-study-shows-ventilation-can-cut-school-covid...

Looking to improve air quality & reduce illness in your kids’ schools (or wherever)? Sharing my doc compiling info & instructions for making #corsirosenthal boxes - I’ve built a few for kid’s school before (& my own classroom) & will do more now. Be safe! docs.google.com/document/d/1...

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Drawn syllabi for a comics class

Drawn syllabi for a comics class

Drawn syllabi for a comics class

Drawn syllabi for a comics class

Drawn syllabi for a comics class

Drawn syllabi for a comics class

Selfie of me carrying my corsirosenthal box on way to classes

Selfie of me carrying my corsirosenthal box on way to classes

First week of classes - all over-filled, a lot of enthusiastic Ss want to learn comics! Here’s my new drawn syllabus again along with/tweaked existing syllabi & full syllabi & resources on my site. Plus me & my #corsirosenthal box trekking to class! spinweaveandcut.com/education-ho...

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