Given that air purifiers could increase airborne endotoxin levels [0], that instead better ventilation should be prioritized as it also solves the higher CO2 pr

Given that air purifiers could increase airborne endotoxin levels [0], that instead better ventilation should be prioritized as it also solves the higher CO2 problem, where we know cognitive function slows down due to higher CO2 levels [1]. Given that OSHA sets an upper limit on CO2 in the workplace, I wonder whether daycare centers have such norms enforced too. [0] https://www.sciencedirect.com/science/article/pii/S016041202031833X https://www.sciencedirect.com/science/article/pii/S016041202... [1] https://www.ucl.ac.uk/bartlett/energy/news/2018/dec/study-mitigating-effects-higher-co2-levels-productivity-receives-widespread-coverage https://www.ucl.ac.uk/bartlett/energy/news/2018/dec/study-mi...