2024 Yes Perceived indoor air quality in naturally ventilated primary schools in the UK: Impact of environmental variables and thermal sensation https://onlinelibrary.wiley.com/doi/full/10.1111/ina.12740 Korsavi, Sepideh Sadat Europe Experimental Students Elementary (K-5) Carbon Dioxide (CO2) Temperature Air sensation votes children’s perception CO2 levels Indoor air quality Natural ventilation Operative temperature In 805 UK children, perceptions of indoor air quality linked more to CO2 in non-heating and temperature in heating seasons. Keeping CO2 <1000 ppm and comfortable temperatures improved air sensation votes by 43%, influencing comfort and tiredness. 2020