2022 No https://doi.org/10.1016/j.iac.2022.05.005 Mortelliti, Caroline North America Review Students Elementary (K-5) Middle/Jr High (6-8) Ventilation rates Carbon Monoxide (CO) Particulate Matter (PM) Nitrogen Dioxide (NO2) Fungi Allergens Sulfur dioxide (SO2) Respiratory symptoms School inner-city asthma study (SICAS) Pediatrics Indoor allergens Allergen exposure childhood asthma School-based interventions Integrated pest management HEPA filter Review summarizes evidence on school allergens, pollutants, and pediatric asthma; reports mixed outcomes from school interventions; stresses need for improved school IAQ strategies to reduce asthma risk in vulnerable children.