New piece out today in @the74.bsky.social on the case for clean air in schools. Just as school meals are foundational for student attendance and focus, the evidence is growing that clean air is just as essential.

Did you buy Wirecutter's top air purifier pick during the pandemic? You'd think we'd have figured out indoor air quality after Covid. We haven't. The most popular purifiers make 3 fundamental errors that reveal a deeper problem 🧵

Why are air purifiers in classrooms not among the top priorities of school districts and education philanthropy? The evidence is somewhat nascent, sure, but what we're learning about the effects of clean air on test scores and absenteeism is super striking: