Evaluating Portable HEPA Purifiers to Reduce Respiratory Viral Exposure in Elementary Schools: Insights from a Randomized Clinical Trial Secondary Analysis

Evaluating Portable HEPA Purifiers to Reduce Respiratory Viral Exposure in Elementary Schools: Insights from a Randomized Clinical Trial Secondary Analysis

A secondary analysis of a cluster-randomized trial found that portable HEPA purifiers modestly reduced viral diversity but did not significantly lower high respiratory viral exposure in elementary school classrooms, suggesting multi-faceted interventions are needed to protect children in schools.