Many U.S. schools were in dire need of upgrades — burdened by leaking pipes, mold, and antiquated heating systems — long before the covid-19 pandemic drew attention to the importance of indoor ventilation in reducing the spread of infectious disease.
The average U.S. school building is 50 years old, and many schools date back more than a century.
Read full Article: COVID Funding Pries Open A Door To Improving Air Quality In Schools