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by Prithvi Jadwani

Indoor vs Outdoor Air Pollution: When Is Staying Inside Actually the Safer Choice?

TL;DR Quick Answer: Should You Stay Inside During High Pollution or Is Indoor Air Also a Problem? Staying indoors helps on high AQI days but only if your indoor air is actually cleaner than outside. In many Indian homes it...

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by Prithvi Jadwani

Industrial Smoke and Burning Waste Are Everywhere in India. Here Is What That Air Is Doing to Your Lungs.

TL;DR Burning waste and industrial smoke can push local AQI past 400 within hours. And the reason it hits harder than traffic pollution is not just the quantity, it is what is actually in it. The body has no real...

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by Prithvi Jadwani

Construction Pollution: Just How Dangerous Is the Air Around an Active Building Site?

TL;DR Quick Answer: How Dangerous Is Construction Site Pollution to Breathe? Construction site air contains a mix of fine silica dust, cement particles, diesel exhaust, and volatile compounds that in combination create a more harmful exposure than most urban pollution...

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by Prithvi Jadwani

Why AQI Spikes Every Winter in India and What Preparation Actually Looks Like Before It Peaks

TL;DR Winter AQI spikes because cold air physically traps pollutants at ground level instead of letting them rise and disperse. All the usual sources, vehicles, cooking fires, construction, industry, are doing roughly the same thing year round. The difference is...

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by Prithvi Jadwani

At AQI 300, How Many Cigarettes Are You Effectively Smoking Every Single Day?

TL;DR Breathing outdoor air at AQI 300 for a full day is roughly equivalent to smoking 20 cigarettes. The lungs do not care whether the particulates came from a cigarette or from the air. The inflammatory response is the same...

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by Prithvi Jadwani

What Hazardous Air Quality Really Means and Why Most Indians Are Not Responding to It Correctly

TL;DR Hazardous air quality officially starts at AQI 301 on India's national scale. At this level even healthy adults experience measurable lung damage from brief outdoor exposure. Most Indians treat a hazardous AQI day like bad weather. That is not...

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by Access TechDevs

Worn All Day. Zero Ozone Detected. 24 Hours of Testing Confirmed It.

TL;DR Some ion-based purifiers emit ozone as a by-product. IIT Kanpur tested the Atovio Pebble for 24 hours continuously in a sealed 1 ft x 1 ft x 1 ft chamber (28.3 litres). The sealed chamber was deliberately chosen because...

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by Access TechDevs

The Atovio Pebble Removed Over 99.9% of PM2.5. Three Tests Said the Same Thing

TL;DR IIT Kanpur tested the Atovio Pebble wearable air purifier for PM1, PM2.5, and PM10 removal using an Optical Particle Sizer in a controlled 5.75 cubic foot chamber. Three independent trials, using incense to generate a stable particulate load across...

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by Access TechDevs

The Air Six Inches From Your Nose Is Not What Your AQI App Is Showing You

TL;DR The breathing zone is the space within 30 cm of your nose and mouth. It is the air your lungs actually receive. Research cited in the IIT Kanpur field report: PM2.5 in the breathing zone can be 2 to...

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