Reducing Viral Spread in Schools: France Makes Proactive Move to Measure and Reduce CO2 Levels in School and Daycare

One of my favorite gadgets from the pandemic is the AraNet 4 CO2 monitor. I carry it with me whenever I am curious about an indoor space. This easy-to-use monitor gives a simple red-yellow-green reading of the CO2 level. At a green level (<1000 ppm) it is harder to transmit an airborne viral infection. At a red level (>1400 ppm) it is much easier to catch a virus if someone else in the room is sick.
I use this in restaurants and on airplanes, for instance, to help guide my actions.
As a bonus, CO2 levels also correlate with alertness and productivity. When CO2 levels drift into the yellow range (>1000 ppm), cognitive function decreases 15%. And if it gets into the red range (>1400 ppm) cognitive scores have been shown to drop 50%. Fresh air boosts energy and intellect.
Armed with the information from my AraNet 4, I’ve learned to open windows or doors, look for high ceilings or upgraded ventilation and for rooms with an appropriate number of people for the space. This fresh air decreases risk of COVID, influenza, RSV and other respiratory function – and makes me less sleepy, more alert, and better functioning. It’s impressive how a little change in the windows, for instance, can make a big change in CO2 levels.
Reducing Viral Spread in Schools
On December 27, 2022, France issued a new environmental code for daycares, elementary schools, middle schools and high schools (including areas for sports practice) and for dorms. Going forward, all these facilities mus...

Source: Conversations with Dr Greene - January 9, 2023 Category: Child Development Authors: Alan Greene MD Tags: Dr. Greene's Blog Air Quality Allergies Virus Source Type: blogs