According to a recent study from Johns Hopkins Center for Health Security, "School Ventilation: A Vital Tool to Reduce COVID-19 Spread," ventilation improvements in K-12 schools are a cost-effective public health measure. A broad conclusion of this research is that investments in healthy air in schools offer far-reaching benefits in terms of both student health and academic achievement. "Improved ventilation may give children and school staff healthier indoor air quality for decades in the future, providing a healthier environment for non-pandemic times and potentially reducing risks in future infectious disease outbreaks," the report states.
To help guide school administrators' investments, researchers with the Johns Hopkins Center for Health Security identified six evidence-based "building-level public health interventions" designed to "reduce the risk of COVID-19 transmission and promote long-term health and academic performance."