2024 No The Impact of Air Filtration Units on Primary School Students’ Indoor Exposure to Particulate Matter in China https://doi.org/10.1016/j.envpol.2020.115107 Tong, Zheming Asia Experimental Exposure Students Elementary (K-5) Particulate Matter (PM) Carbon Dioxide (CO2) Ventilation rates Air filtration unit Ventilation classroom China PM2.5 IAQ Field experiment compared air filtration unit impacts on PM₂.₅ exposure in Chinese primary school classrooms; findings guide ventilation strategies and public health decisions. 2020