Concerning Indoor Air Quality at Pittsford Central Schools

Outdoor classroom on a ferry in New York City
Particle counter and CO2 meter used widely to measure IAQ in school.
Credit David Elstrom @ https://tinyurl.com/rebreathed-air-fraction
Max CO2 ppm broken down by period
CO2 ppm in five minute increments
link
This graphic from the above study shows the difference between when air filtration was turn on and off in a “surge ICU” room.

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