Clean Air Cancels COVID-19 in School

By the time a student graduates high school, they will have spent more than 15,000 hours in school, the second longest indoor exposure time after their home.

The scientific record now reflects the reality that airborne transmission is the dominant mode of transmission for COVID, as for many other respiratory diseases. 

A recent report from The Harvard T.H. Chan School of Public Health's Schools For Health team illuminates how the school building influences students' health, thinking, and performance.

Download the report to learn about checking ventilation rates in classrooms.

In this guide, the authors highlighted:

• Measure or Estimate Outdoor Air Ventilation Rate,
• Compare Results to Targets,
• Consider Supplemental Air cleaning Strategies to Meet Targets.

'Organizations cannot continue to tell people to "bring in more air" without answering the critical question: "How much?" wrote Joseph G. Allen, associate professor of exposure assessment science at the Harvard T.H. Chan School of Public Health, on March 1, 2023.