Following an emergency situation involving a false alarm in Los Angeles that led to the installation of air filters in schools, test scores experienced a surprising and sustained increase. Michael Gilraine’s study revealed that air filters, costing only $700 per classroom, led to a significant improvement in student achievement. This intervention, believed to be the most cost-effective education policy, could benefit low-income children the most. The study highlights the cognitive impact of air pollution and the potential widespread benefits of installing air filters in schools nationwide. This initiative could address socioeconomic achievement gaps at a low cost, offering significant improvements in student performance.
https://www.vox.com/2020/1/8/21051869/indoor-air-pollution-student-achievement