Sarah Fentem, St. Louis Public Radio

More Than 100 Missouri Schools Have Bought ‘Often Unproven’ Air-Cleaning Technology

KFF Health News Original

Across Missouri, more than 100 schools have spent over $3.5 million — often at the taxpayers’ expense — snapping up ionization and other air-purifying devices in an attempt to keep kids safe from covid-19. But experts warn the largely unregulated technology hasn’t been thoroughly tested in classroom settings and is “often unproven.”