Industrial dust
Air quality sensors placed away from direct vent and window airflow trigger purifiers automatically when indoor readings rise.
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Proximity to Bhilai's steel and industrial belt means ambient dust levels run higher here than in a purely residential city, and that dust settles into exposed sensors, vents, and open windows over time.
How we solve it: Air quality sensors placed away from direct vent and window airflow trigger purifiers automatically when indoor readings rise, and annual service includes a dust cleaning and sensor health check so placement, not device choice, handles the industrial air.
Most common in: Sector 1-10, Supela