Blog

Notes on air, health, and living in Delhi NCR.

Plain-language reads on indoor air quality, pollution data, and what actually helps, not just product talk.

Why Room Air Purifiers Aren't Enough for Whole-Home Air Quality

Room purifiers clean the air you've already breathed, they don't solve the bigger problem of stale, recirculated indoor air across your whole home.

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Understanding AQI: What "Under 20" Really Means for Your Lungs

AQI numbers get thrown around constantly during Delhi winters, here's what the scale actually measures, and why the difference between 20 and 300 matters more than you'd think.

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The Hidden Cost of Indoor Air: CO₂, Stuffiness, and the Pettenkofer Number

Fatigue and poor concentration indoors aren't always about sleep, closed, recirculated rooms quietly build up CO₂ well past healthy limits.

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Delhi's Air Pollution Problem: What the Data Actually Shows

A look at the numbers behind Delhi NCR's air, from life expectancy impact to how far outdoor pollution levels exceed global health guidelines.

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