After 76 days of HEPA air purification, children breathed 48% less PM2.5. They did better in Chinese and overall school scores, moved up in class rankings, and showed better thinking and problem-solving skills. sciencedirect.com/science/ar…
A modern classroom scene with children with text supporting children's learning and focus through air purification, on an AI-generated background.

ALT A modern classroom scene with children with text supporting children's learning and focus through air purification, on an AI-generated background.

Sep 24, 2026 · 10:01 PM UTC

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Replying to @SmartAirFilters
That’s the way. Fresh air and air filters keep children safe and brains 🧠 working. That’s the only way.
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Replying to @SmartAirFilters
The personal exposure measurement is the part that stands out to me. They tracked what the children actually breathed, not just a room average—and the intervention covered both classrooms and bedrooms. One clean room wouldn't tell the whole story.
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Replying to @SmartAirFilters
Wow
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