2020 Yes https://onlinelibrary.wiley.com/doi/full/10.1111/ina.12740 Korsavi, Sepideh Sadat Europe Experimental Students Elementary (K-5) Air sensation votes Children's perception CO2 levels Indoor air quality Natural ventilation Operative temperature Surveys and CO2/temp data from 805 UK primary school students showed perceived air quality correlated with CO₂ and thermal sensation. Findings emphasize joint control of temperature and ventilation for comfort and alertness.