Corsi-Rosenthal Foundation (US)
@crfoundationus.bsky.social
Improving human health by promoting clean indoor air and supplying air purifiers to those in need.
https://corsirosenthalfoundation.org/
https://corsirosenthalfoundation.org/
More and more people around the world are talking about the importance of clean air!
Join the movement and donate today and help us reach our goal of getting clean air to 10,000 students!
Donate today: givebutter.com/buildabox2025
Join the movement and donate today and help us reach our goal of getting clean air to 10,000 students!
Donate today: givebutter.com/buildabox2025
November 13, 2025 at 3:33 PM
More and more people around the world are talking about the importance of clean air!
Join the movement and donate today and help us reach our goal of getting clean air to 10,000 students!
Donate today: givebutter.com/buildabox2025
Join the movement and donate today and help us reach our goal of getting clean air to 10,000 students!
Donate today: givebutter.com/buildabox2025
These folks know how to decorate!
November 5, 2025 at 4:09 PM
These folks know how to decorate!
🥹Look at our elders keeping their community healthy🥹
This is Air Alliance Houston building CR Boxes.
If you are inspired by these folks, please donate so we can sponsor more events like this: givebutter.com/buildabox2025
This is Air Alliance Houston building CR Boxes.
If you are inspired by these folks, please donate so we can sponsor more events like this: givebutter.com/buildabox2025
November 5, 2025 at 4:09 PM
🥹Look at our elders keeping their community healthy🥹
This is Air Alliance Houston building CR Boxes.
If you are inspired by these folks, please donate so we can sponsor more events like this: givebutter.com/buildabox2025
This is Air Alliance Houston building CR Boxes.
If you are inspired by these folks, please donate so we can sponsor more events like this: givebutter.com/buildabox2025
Is your air cleaner a money suck?
⬆️up front cost
⬆️cost of replacement filters
The CR box is a fraction of the cost of other units, with greater efficacy.
It just moves SO much air, providing mixing and many more passes through the filters.
Can your air cleaner do this?⤵️
⬆️up front cost
⬆️cost of replacement filters
The CR box is a fraction of the cost of other units, with greater efficacy.
It just moves SO much air, providing mixing and many more passes through the filters.
Can your air cleaner do this?⤵️
October 30, 2025 at 11:23 PM
Is your air cleaner a money suck?
⬆️up front cost
⬆️cost of replacement filters
The CR box is a fraction of the cost of other units, with greater efficacy.
It just moves SO much air, providing mixing and many more passes through the filters.
Can your air cleaner do this?⤵️
⬆️up front cost
⬆️cost of replacement filters
The CR box is a fraction of the cost of other units, with greater efficacy.
It just moves SO much air, providing mixing and many more passes through the filters.
Can your air cleaner do this?⤵️
This week's top fan is a soon-to-be Eagle Scout who has decided to do his big Eagle Project on building and donating CR Boxes to a local school with data showing poor indoor air quality.
The youth are fired up about IAQ.
And we are here for it!
The youth are fired up about IAQ.
And we are here for it!
October 22, 2025 at 8:15 PM
This week's top fan is a soon-to-be Eagle Scout who has decided to do his big Eagle Project on building and donating CR Boxes to a local school with data showing poor indoor air quality.
The youth are fired up about IAQ.
And we are here for it!
The youth are fired up about IAQ.
And we are here for it!
How many CR Boxes do you need for a particular space?
Check out our new handy charts to help gauge your needs for:
- school settings
- residential settings
*Notice the guidance is different based on your goals:
- mitigating wildfire smoke
- mitigating bioaerosols
Check out our new handy charts to help gauge your needs for:
- school settings
- residential settings
*Notice the guidance is different based on your goals:
- mitigating wildfire smoke
- mitigating bioaerosols
October 9, 2025 at 3:22 PM
How many CR Boxes do you need for a particular space?
Check out our new handy charts to help gauge your needs for:
- school settings
- residential settings
*Notice the guidance is different based on your goals:
- mitigating wildfire smoke
- mitigating bioaerosols
Check out our new handy charts to help gauge your needs for:
- school settings
- residential settings
*Notice the guidance is different based on your goals:
- mitigating wildfire smoke
- mitigating bioaerosols
We are looking forward to participating in this Global IAQ event next week at UN Headquarters in NYC.
We will be joining orgs from around the world to address the need for clean indoor air.
Register here 🔽 to watch the event from anywhere:
bit.ly/461pNPq
We will be joining orgs from around the world to address the need for clean indoor air.
Register here 🔽 to watch the event from anywhere:
bit.ly/461pNPq
September 18, 2025 at 5:05 PM
We are looking forward to participating in this Global IAQ event next week at UN Headquarters in NYC.
We will be joining orgs from around the world to address the need for clean indoor air.
Register here 🔽 to watch the event from anywhere:
bit.ly/461pNPq
We will be joining orgs from around the world to address the need for clean indoor air.
Register here 🔽 to watch the event from anywhere:
bit.ly/461pNPq
🥳The Corsi-Rosenthal Foundation is celebrating the donation of our 2,000th CR Box.🥳
That is A LOT of clean air ... all thanks to your generous donations that allow us to do this work.
Thank you! Feel free to join our efforts by donating here: corsirosenthalfoundation.org/donate/
That is A LOT of clean air ... all thanks to your generous donations that allow us to do this work.
Thank you! Feel free to join our efforts by donating here: corsirosenthalfoundation.org/donate/
September 12, 2025 at 4:27 PM
🥳The Corsi-Rosenthal Foundation is celebrating the donation of our 2,000th CR Box.🥳
That is A LOT of clean air ... all thanks to your generous donations that allow us to do this work.
Thank you! Feel free to join our efforts by donating here: corsirosenthalfoundation.org/donate/
That is A LOT of clean air ... all thanks to your generous donations that allow us to do this work.
Thank you! Feel free to join our efforts by donating here: corsirosenthalfoundation.org/donate/
💥NEW RESOURCE💥
We're excited to share a new BIG BUILD GUIDE to help those who are building a large quantity of CR Boxes.
It's an amazing combination of:
- tips
- printable instructions
- editable files
Check it out: corsirosenthalfoundation.org/instructions/
We're excited to share a new BIG BUILD GUIDE to help those who are building a large quantity of CR Boxes.
It's an amazing combination of:
- tips
- printable instructions
- editable files
Check it out: corsirosenthalfoundation.org/instructions/
September 4, 2025 at 3:39 PM
💥NEW RESOURCE💥
We're excited to share a new BIG BUILD GUIDE to help those who are building a large quantity of CR Boxes.
It's an amazing combination of:
- tips
- printable instructions
- editable files
Check it out: corsirosenthalfoundation.org/instructions/
We're excited to share a new BIG BUILD GUIDE to help those who are building a large quantity of CR Boxes.
It's an amazing combination of:
- tips
- printable instructions
- editable files
Check it out: corsirosenthalfoundation.org/instructions/
Thanks @usepa.bsky.social
for including us in the team of Air Cleaning Allies super heroes!
Check out their new Activity Book for kids to learn about the importance of clean indoor air and ways to improve IAQ.
Give DJ a ❤️!!
Download it here: www.epa.gov/system/files...
for including us in the team of Air Cleaning Allies super heroes!
Check out their new Activity Book for kids to learn about the importance of clean indoor air and ways to improve IAQ.
Give DJ a ❤️!!
Download it here: www.epa.gov/system/files...
August 26, 2025 at 11:15 PM
Thanks @usepa.bsky.social
for including us in the team of Air Cleaning Allies super heroes!
Check out their new Activity Book for kids to learn about the importance of clean indoor air and ways to improve IAQ.
Give DJ a ❤️!!
Download it here: www.epa.gov/system/files...
for including us in the team of Air Cleaning Allies super heroes!
Check out their new Activity Book for kids to learn about the importance of clean indoor air and ways to improve IAQ.
Give DJ a ❤️!!
Download it here: www.epa.gov/system/files...
Want to get [FREE] Corsi-Rosenthal Boxes in your child's school this year?
We've created an email you can share with the school principal to make the process easier.
You can access it through the link on STEP 2 of our grant process. corsirosenthalfoundation.org/apply/
Please share!
We've created an email you can share with the school principal to make the process easier.
You can access it through the link on STEP 2 of our grant process. corsirosenthalfoundation.org/apply/
Please share!
August 18, 2025 at 9:26 PM
Want to get [FREE] Corsi-Rosenthal Boxes in your child's school this year?
We've created an email you can share with the school principal to make the process easier.
You can access it through the link on STEP 2 of our grant process. corsirosenthalfoundation.org/apply/
Please share!
We've created an email you can share with the school principal to make the process easier.
You can access it through the link on STEP 2 of our grant process. corsirosenthalfoundation.org/apply/
Please share!
Tune in to this 11-minute interview with Dr. Richard Corsi on Canadian radio.
How a DIY air purifier can help deal with wildfire smoke.
@corsiaq.bsky.social
Affordability - Accessibility - Efficiency
They continue to be our driving values.
www.cbc.ca/listen/live-...
Pic of the OG.
How a DIY air purifier can help deal with wildfire smoke.
@corsiaq.bsky.social
Affordability - Accessibility - Efficiency
They continue to be our driving values.
www.cbc.ca/listen/live-...
Pic of the OG.
August 2, 2025 at 12:02 AM
Tune in to this 11-minute interview with Dr. Richard Corsi on Canadian radio.
How a DIY air purifier can help deal with wildfire smoke.
@corsiaq.bsky.social
Affordability - Accessibility - Efficiency
They continue to be our driving values.
www.cbc.ca/listen/live-...
Pic of the OG.
How a DIY air purifier can help deal with wildfire smoke.
@corsiaq.bsky.social
Affordability - Accessibility - Efficiency
They continue to be our driving values.
www.cbc.ca/listen/live-...
Pic of the OG.
This week's update: 12 CR boxes granted to heat relief and respite centers in the Phoenix, AZ area. @airsupportproject.bsky.social
Back-to-school season is upon us. Be sure you are following us to get updates on all our new resources to help kids and teachers have cleaner air this school year.
Back-to-school season is upon us. Be sure you are following us to get updates on all our new resources to help kids and teachers have cleaner air this school year.
August 1, 2025 at 2:46 PM
This week's update: 12 CR boxes granted to heat relief and respite centers in the Phoenix, AZ area. @airsupportproject.bsky.social
Back-to-school season is upon us. Be sure you are following us to get updates on all our new resources to help kids and teachers have cleaner air this school year.
Back-to-school season is upon us. Be sure you are following us to get updates on all our new resources to help kids and teachers have cleaner air this school year.
This week's Top Fan is our friends at
@airsupportproject.bsky.social . Their VP, Melissa Smallwood, built CR boxes to be placed in heat relief centers around Phoenix, AZ.
These cooling & respite centers ease one public health crisis. Happy to minimize the impacts of other crises.
@airsupportproject.bsky.social . Their VP, Melissa Smallwood, built CR boxes to be placed in heat relief centers around Phoenix, AZ.
These cooling & respite centers ease one public health crisis. Happy to minimize the impacts of other crises.
July 30, 2025 at 11:44 PM
This week's Top Fan is our friends at
@airsupportproject.bsky.social . Their VP, Melissa Smallwood, built CR boxes to be placed in heat relief centers around Phoenix, AZ.
These cooling & respite centers ease one public health crisis. Happy to minimize the impacts of other crises.
@airsupportproject.bsky.social . Their VP, Melissa Smallwood, built CR boxes to be placed in heat relief centers around Phoenix, AZ.
These cooling & respite centers ease one public health crisis. Happy to minimize the impacts of other crises.
This week's update: 12 more CR Boxes deployed to schools and community centers around the US.
We are working hard to get ready for back-to-school season! Please consider donating $$ so we can get clean air in as many classrooms as possible. Donate here: corsirosenthalfoundation.org/donate/
We are working hard to get ready for back-to-school season! Please consider donating $$ so we can get clean air in as many classrooms as possible. Donate here: corsirosenthalfoundation.org/donate/
July 24, 2025 at 2:46 PM
This week's update: 12 more CR Boxes deployed to schools and community centers around the US.
We are working hard to get ready for back-to-school season! Please consider donating $$ so we can get clean air in as many classrooms as possible. Donate here: corsirosenthalfoundation.org/donate/
We are working hard to get ready for back-to-school season! Please consider donating $$ so we can get clean air in as many classrooms as possible. Donate here: corsirosenthalfoundation.org/donate/
This week's Top Fan!!
The Ohio Clean Air Coalition recently received a grant from us. They gathered, built, and distributed several CR boxes to public spaces in their community!
We are honored to have played a small part in this story.
The Ohio Clean Air Coalition recently received a grant from us. They gathered, built, and distributed several CR boxes to public spaces in their community!
We are honored to have played a small part in this story.
July 18, 2025 at 2:58 PM
This week's Top Fan!!
The Ohio Clean Air Coalition recently received a grant from us. They gathered, built, and distributed several CR boxes to public spaces in their community!
We are honored to have played a small part in this story.
The Ohio Clean Air Coalition recently received a grant from us. They gathered, built, and distributed several CR boxes to public spaces in their community!
We are honored to have played a small part in this story.
Another great week of helping folks access cleaner indoor air.
Be sure to follow us and RT.
We've got A LOT of new resources to share in preparation for back-to-school season.
@corsiaq.bsky.social @polsiewski.bsky.social @jimrosenthal5.bsky.social @jaydocovid.bsky.social @jehnml.bsky.social
Be sure to follow us and RT.
We've got A LOT of new resources to share in preparation for back-to-school season.
@corsiaq.bsky.social @polsiewski.bsky.social @jimrosenthal5.bsky.social @jaydocovid.bsky.social @jehnml.bsky.social
July 16, 2025 at 7:21 PM
Another great week of helping folks access cleaner indoor air.
Be sure to follow us and RT.
We've got A LOT of new resources to share in preparation for back-to-school season.
@corsiaq.bsky.social @polsiewski.bsky.social @jimrosenthal5.bsky.social @jaydocovid.bsky.social @jehnml.bsky.social
Be sure to follow us and RT.
We've got A LOT of new resources to share in preparation for back-to-school season.
@corsiaq.bsky.social @polsiewski.bsky.social @jimrosenthal5.bsky.social @jaydocovid.bsky.social @jehnml.bsky.social
Drop a 👋 below to say hi to Liesl McConchie (@Liesl4CleanAir.bluesky.social), our new interim Executive Director for the Corsi-Rosenthal Foundation.
We are thrilled to have Liesl's energy and expertise on board as we deliver cleaner air to improve human health.
We are thrilled to have Liesl's energy and expertise on board as we deliver cleaner air to improve human health.
June 28, 2025 at 5:28 PM
Drop a 👋 below to say hi to Liesl McConchie (@Liesl4CleanAir.bluesky.social), our new interim Executive Director for the Corsi-Rosenthal Foundation.
We are thrilled to have Liesl's energy and expertise on board as we deliver cleaner air to improve human health.
We are thrilled to have Liesl's energy and expertise on board as we deliver cleaner air to improve human health.
Hear how frequent illness and poor air quality posed major problems for students at Red Rock Elementary, and how Corsi-Rosenthal Boxes boosted their health and ability to learn.
Learn more at:
CleanAirK12.com
CorsiRosenthalFoundation.org
#CRBox #CleanAirK12
Full Video:
youtu.be/dUYLPUfkv0g
Learn more at:
CleanAirK12.com
CorsiRosenthalFoundation.org
#CRBox #CleanAirK12
Full Video:
youtu.be/dUYLPUfkv0g
February 24, 2025 at 11:25 PM
Hear how frequent illness and poor air quality posed major problems for students at Red Rock Elementary, and how Corsi-Rosenthal Boxes boosted their health and ability to learn.
Learn more at:
CleanAirK12.com
CorsiRosenthalFoundation.org
#CRBox #CleanAirK12
Full Video:
youtu.be/dUYLPUfkv0g
Learn more at:
CleanAirK12.com
CorsiRosenthalFoundation.org
#CRBox #CleanAirK12
Full Video:
youtu.be/dUYLPUfkv0g
Tomorrow Fri 2/7! Join us for a series of discussions with Rich Corsi, Liesl McConchie, and Dustin Drury on “Clean Air Emergencies” and what we can do:
Register: bit.ly/Feb7CleanAirForum
@togetherwemask.bsky.social @corsiaq.bsky.social
@lieslmcconchie.bsky.social @cleanairla.bsky.social
Register: bit.ly/Feb7CleanAirForum
@togetherwemask.bsky.social @corsiaq.bsky.social
@lieslmcconchie.bsky.social @cleanairla.bsky.social
February 7, 2025 at 3:58 AM
Tomorrow Fri 2/7! Join us for a series of discussions with Rich Corsi, Liesl McConchie, and Dustin Drury on “Clean Air Emergencies” and what we can do:
Register: bit.ly/Feb7CleanAirForum
@togetherwemask.bsky.social @corsiaq.bsky.social
@lieslmcconchie.bsky.social @cleanairla.bsky.social
Register: bit.ly/Feb7CleanAirForum
@togetherwemask.bsky.social @corsiaq.bsky.social
@lieslmcconchie.bsky.social @cleanairla.bsky.social
This was our first stop yesterday to distribute DIY air filters - we dropped off 65 filters to three different groups, assisted by members of @maskblocla.bsky.social, Clean Air LA, @joaquinlife.bsky.social, and our Board member @lieslmcconchie.bsky.social
January 13, 2025 at 5:40 PM
This was our first stop yesterday to distribute DIY air filters - we dropped off 65 filters to three different groups, assisted by members of @maskblocla.bsky.social, Clean Air LA, @joaquinlife.bsky.social, and our Board member @lieslmcconchie.bsky.social
We have pulled together 150 DIY air filters for LA - we are distributing as we speak through partners and organizers on the ground. We appreciate all the donations and spreading the word!
January 13, 2025 at 1:18 AM
We have pulled together 150 DIY air filters for LA - we are distributing as we speak through partners and organizers on the ground. We appreciate all the donations and spreading the word!
We are bringing 150 1-Filter CR Boxes to LA in the next few days. We have already lined up several community groups and organizers to help distribute them but continue to reach out if you are part of groups interested in distributing. #crboxes #cleanair #iaq @lieslmcconchie.bsky.social
January 11, 2025 at 11:13 PM
We are bringing 150 1-Filter CR Boxes to LA in the next few days. We have already lined up several community groups and organizers to help distribute them but continue to reach out if you are part of groups interested in distributing. #crboxes #cleanair #iaq @lieslmcconchie.bsky.social
While we work on a larger strategy and connect to partners, we are fulfilling small orders like these with supplies still available at stores (many MERV13 are selling out, which means people are using them):
January 10, 2025 at 1:52 AM
While we work on a larger strategy and connect to partners, we are fulfilling small orders like these with supplies still available at stores (many MERV13 are selling out, which means people are using them):