Info on Air Quality

Scientific Reports - Infectivity of exhaled SARS-CoV-2 aerosols is sufficient to transmit covid-19 within minutes

Staying open starts with cleaner air Transmission of SARS-CoV-2 happens mostly indoors and occurs largely via inhaled infectious aerosols that are more concentrated near their source and that can accumulate and linger in poorly ventilated indoor spaces1. It is estimated that the risk of transmission indoors is 20 times higher than outdoors. Fortunately, we know

By Dr. Alondra Nelson, head of the White House Office of Science and Technology Policy and Deputy Assistant to the President The most common way COVID-19 is transmitted from one person to another is through tiny airborne particles of the virus hanging in indoor air for minutes or hours after an infected person has been…

Actions that communities can take to slow the spread of COVID-19.

This web site will educate the public about indoor environmental issues specific to educational facilities and the importance of developing and sustaining comprehensive indoor air quality management programs.

EPA recommends precautions to reduce the potential airborne transmission of the virus, such as ventilation and air filtration as a part of a larger strategy that includes minimizing close contact, surface cleaning, handwashing, and other precautions.

Learn more about ASHRAE Publishes Standard 241, Control of Infectious Aerosols at ashrae.org

“Air is the new poop”

CADR: Tests, interpretation and sizing (version of Jan 9, 2022) With the participation of Yago Jiménez, Eduardo Tizné, Antonio Pina, Pilar Remacha, Luis Ojeda, Javier Ballester Fluid Mechanics Group / LIFTEC (currently, Joint Center of Univ. Zaragoza and CSIC, Spain) Member of Aireamos.org ...

Clean Air Kits are super-quiet Corsi Rosenthal bulk air cleaners built simply from 3M Filtrete virus + allergen filters and banks of silent rgb fans. Quiet enough to leave on always, powerful enough to protect you and those you love from airborne transmission of viruses like Flu, RSV, & Covid-19

The Corsi-Rosenthal Box is a homemade air cleaning system that can reduce indoor exposure to airborne particles that contain the virus that causes COVID-19. It can also reduce the levels of other particles in the air, such as dust or wildfire smoke.

Introducing the Corsi-Rosenthal Box (CR Box) DIY air purifier. This is an effective, budget-friendly air purifier that you can put together with low cost.

Want to know how to stop COVID and other airborne diseases? Interested in ventilation, filtration and UV to clean the air? This blog has it all.

Have you seen a device claim that 99.9% of particles are removed in 30 minutes? Is that better than what a portable HEPA filter could do…

Portable HEPA filters and air cleaners are the cheapest and quickest way to increase indoor air cleaning rates. These are my 6 favorites.

An overview of best practices

Build a quiet, sleek, and minimalist air purifier that will help with COVID, wildfire smoke, and allergies.

Is it time to replace that expensive HEPA filter, or is it still working?

Measuring the amount of clean air begins with determining a clean air delivery rate (CADR) or non-infectious air delivery rate (NADR)…

Here is how the new standard compares to the old indoor air quality stanard and guidance from other ogranizations?

Use this easy calculator to determine the ACH (Air Changes Per Hour) or Air Changes Per Minute based on room dimensions and your device's CFM.

Next-Gen #corsirosenthalbox is here! 💨 Quieter!! 💨 Faster to build 💨 Simpler to build 💨 Still low-cost 💨 Small floor space 💨 Longer cord 💨 Only one simple connection 💨 Still highly effective & efficient Here's how I built a new version with modular PC fans:

Risks shoot up when virus particles accumulate in buildings, but it’s not clear how best to improve ventilation.

Study on air quality (CO2, air change rates) in schools and its improvement through mechanical ventilation and the use of air purifiers.

This study shows how specific classroom configurations may affect air quality and necessitate additional measures, beyond good ventilation.

The eagerly awaited finding comes from the first randomised trial of putting HEPA filter machines into classrooms

An Italian study published on Tuesday suggests that efficient ventilation systems can reduce the transmission of COVID-19 in schools by more than 80%.

This JAMA Insights review summarizes basic measures of indoor air ventilation as a means to explain how increases in frequency of air exchange and filtration capture efficiency could mitigate far-field airborne transmission of SARS-CoV-2 inside rooms and buildings.

Air filtration serves to reduce concentrations of particles in indoor environments. A DIY air cleaner can effectively reduce aerosols in indoor spaces.