🚨How effective are school air filters? Are they rated for PM2.5/PM10? 🚨Are filters changed regularly, or is this an afterthought? 🚨How often do we leave windows open, and is that helping or hurting air quality? 🚨Should schools invest in real-time air quality monitors to advocate for cleaner air?

Participants exposed to elevated PM levels performed worse on cognitive tasks than those breathing clean air. While the sample size was small (26 people), the implications for classrooms are huge.