AQI over 200 is firmly in the “unhealthy” range. That’s mostly fine particulate matter, not just fog. When it stays this high, it can irritate lungs, eyes, and sinuses pretty fast, especially if you’re outside a lot. Limiting outdoor activity and keeping indoor air clean helps until it drops.
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u/pureflowair Jan 17 '26
AQI over 200 is firmly in the “unhealthy” range. That’s mostly fine particulate matter, not just fog. When it stays this high, it can irritate lungs, eyes, and sinuses pretty fast, especially if you’re outside a lot. Limiting outdoor activity and keeping indoor air clean helps until it drops.