Also known as a Corsi-Rosenthal box, this DIY method of building your own air filter with MERV13 furnace filters and a box fan are an easy and cost-effective way to help clear indoor air from airborne virus particles, wildfire smoke, pollen, dust, and more!
If you can seal a box, you can build one (or 100!) of these!
Read More »DIY box fan filters – Corsi-Rosenthal box
We know that HEPA and MERV13 filters work to remove airborne virus particles. Read all about it from the EPA, CDC, OSHA, and ASHRAE.
Read More »Air filters work – EPA, CDC, OSHA, ASHRAE, and more agree.
Choose only air cleaners that have mechanical filtration ( particulate filter media) with MERV 13 or higher or HEPA designation. Watch out for ionizers that can produce hazardous ozone. How to choose? There is help!
Read More »Portable Air Cleaner (HEPA filter) buying guide
Resources, links to buy, video review, tools for better fit, how to test for a good seal, and more!
Read More »Masks
How to find protective masks and respirators for children. Kids’ disposable and reusable options available. Check out the video review testing various brands!
Read More »Kids’ Masks
Mitigate against wildfire smoke with N95 respirators, HEPA or MERV13 air filters, and tracking air quality near you.
The CDC changed metrics for COVID maps. COVIDTransmissionMap.com takes you to the original map, showing transmission levels.
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Sometimes we need to bring our own air filters. #BYOHEPA These portable solutions will not clean entire spaces well enough to drop other precautions like masking. The physics of air movement make it difficult to recommend reliance on a personal… Read More »Personal Air Filters
UConn Health Rallying Community to Stop Spread of COVID-19 December 29, 2021 | Kim Krieger – UConn Communications “COVID-19 transmits more easily in overcrowded and poorly ventilated places. To address this, UConn Health has united the UConn community to kick off an Indoor… Read More »UConn
Our latest posts to twitter. Tweets by CleanAirCrewOrg
We know that wearing a good N95 respirator is a great way to significantly reduce risk of catching airborne viruses like SARS CoV2 / COVID. However, some situations necessitate mask removal for care. How can we reduce our risk at… Read More »COVID safety at the dentist / orthodontist
These are pictures of each tweet of someone who has built a CR Box, and all are linked to the actual tweet. This is by design so that you can click on the tweet, and ask any questions you might… Read More »The Corsi/Rosenthal Box Hall of Fame
A growing collection of evidence and resources discussing the airborne nature of the SARS-CoV-2 virus, its impacts, and mitigation strategies.
Read More »COVID is Airborne
Answers to the most frequently asked questions regarding the DIY box fan air filter solution, also known as the Corsi-Rosenthal box.
The Center for Green Schools at U.S. Green Building Council has released a unique series of fact sheets about indoor air quality (IAQ), designed to help people without a technical background understand some of the more complicated details.
Read More »Indoor Air Quality Fact Sheet Series
When someone in your household needs to quarantine at home, you want them to be isolated from others as much as possible. Remember that the virus transmits predominantly through the air, so sanitizing surfaces is not enough.
Read More »Someone in my home has COVID. How do we isolate safely?
SARS-CoV-2, the virus that causes Covid-19, can float in the air like smoke. Aerosolized particles can linger in poorly ventilated indoor spaces, spreading farther than 6 feet from its source. We need to think about controlling the source of the virus indoors, about ventilation (mixing more outdoor air with indoor air), and about air filtration and cleaning devices.
Read More »Ventilation
CO2 monitors measure the amount of Carbon Dioxide in the air, and can help determine if an indoor space is well ventilated.
Read More »CO2 monitors
Get an Aranet4 CO2 monitor for $186.75 at Naltic.com/Aranet4Coupon.html using coupon code “IAQ4dad”.
CO2 monitors measure the amount of Carbon Dioxide in the air, and can help determine if an indoor space is well ventilated, helping to assess levels of COVID risk.
Read More »Aranet4 CO2 monitor couponThis app, developed by Alexander Riccio, provides a way for people to upload CO2 measurements tied to places where they were taken, and for users to view the measurements taken by others. CO2 is a fairly good proxy for indoor… Read More »CO2 Tracker App
What are Elastomeric Respirators?
They are tight fitting respirators made of synthetic or natural rubber material, can be
repeatedly used, disinfected, stored, and re-used.
• They are equipped with replaceable filter cartridges or flexible, disc or pancake-style filters,
which are not housed in a cartridge body.
• They may also have sealing surfaces and adjustable straps that accommodate a better fit.
Some low cost options to test your mask / respirator for a good fit. (This is different from the user seal check that you should do every time you put it on to ensure a good seal is formed with no gaps or leaks)
Read More »Fit testing at home methods
by Noelle Tankard
MPhil Human Evolutionary Studies, University of Cambridge.
BA Archaeology & Anthropology, University of Bristol.
Tips for improving masking behavior, and understanding some potential barriers and solutions.
Read More »How to improve masking behavior
COVID safety in schools: A growing collection of resources.
Read More »Schools