2024 Yes Study on Characteristics of Particulate Matter Resuspension in School Classroom through Experiments Using a Simulation Chamber: Influence of Humidity https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8000034/ Cho, Sunghee Asia Exposure Temperature Humidity Particulate Matter (PM) Particulate matter (PM) Resuspension Relative humidity Resuspension factor Occupants’ activity Classrooms Classroom chamber experiments showed that PM resuspension from walking decreases linearly as humidity rises (R²=0.88 for PM10, 0.93 for PM2.5), indicating humidity’s key role in reducing particulate exposure risks in schools. 2021