alt Hacker NewsIndoor CO2 is likely overrated here at these sub-1000 levels but it's a useful proxy metric for bioeffluent VOCs which are a tiring subset of total VOCs. Ventilation lowers both. This explains the observation better than nocebo theory. See https://www.aivc.org/resource/effects-carbon-dioxide-and-wit...
Interesting study, thanks for sharing! I am starting to see more space temp/CO2 combo sensors in commercial office conference spaces, if the CO2 rises above the setpoint, the VAV opens to let air in to reduce CO2 (and bioeffluent VOCs, according to this study.)