2024 Yes Understanding teachers' experiences of ventilation in California K-12 classrooms and implications for supporting safe operation of schools in the wake of the COVID-19 pandemic https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9111572/ Sanguinetti, Angela North America Exposure Teachers Carbon Dioxide (CO2) Air quality Classrooms Occupant perceptions Thermal comfort Ventilation A survey of 84 California teachers found poor awareness of mechanical ventilation and misperceptions of indoor air quality. Classrooms with lower ventilation were often rated more favorably. Findings highlight the need for CO₂ monitoring and education. 2022