The benefits of indoor air quality in schools are substantial, but American school buildings are old and many face major challenges when it comes to upgrades. Science and health correspondent Maria Godoy talks to host Aaron Scott about how there are a few hopeful signs that indoor air quality in schools will be improved- including some federal money and a new awareness of air quality because of the pandemic. Read Maria's story on indoor air quality in schools here: n.pr/3uy3A93Email the show at shortwave@npr.org.