An article I just read in the Colorado Sun, written by Shelly Miller, Professor of Mechanical Engineering at CU-Boulder, tells us something really important — that keeping the concentration of CO2 (generated by human breathing) under 600 ppm in indoor spaces has been shown to dramatically reduce the spread of Covid-19. Here’s a link to the source article:
Prof. Miller receives funding from the National Science Foundation, Environmental Protection Agency, Centers for Disease Control, National Institutes of Health, and additional nonprofit organizations. She is affiliated with American Association of Aerosol Research and the International Society of Indoor Air Quality and Climate.
Thanks to reader Jen Grauer for bringing this to my attention, and I’m happy to bring it to yours!
At Golden Real Estate it has been our practice since the beginning of the virus to keep our front doors open so that we and our visitors don’t have to touch them, but now we realize that this practice also makes our indoor air safer. We also have a CO2 monitor, which we’ll now plug in and display prominently in our office.