After the pandemic hit, the largest school district in Kansas set to calculating how much outdoor air it should pull into its buildings.
Wichita Public Schools turned to the nation’s top sources for expertise, then boosted ventilation in ways that scientists say dramatically cut the risk of inhaling COVID-19.
Evidence that schools — as well as operators of other buildings that bring people together — should take those steps has solidified, buoyed by scientific findings that the virus spreads through particles in the air, not by lurking on doorknobs.
