New Delhi, Nov. 15 -- With Diwali having just come and gone, I was wondering if my eyes were deceiving me. With AQI readings reaching well over 1500, I was stunned to see my air purifier with a reading well below 50. Yes, I had amped up all the settings to the maximum, but still.

The Xiaomi Mijia Smart Air Purifier 6 delivered on the most important pollution explosion day in Delhi, and how. I've tested a number of air purifiers over the years, from companies like Xiaomi, Phillips, Conway, and more, and all of them failed to get the air quality to below even 100 on the day of Diwali.

Xiaomi recently unveiled its smart home and lifestyle-focused brand Mijia in India, and a slew of products are slowly being launched. The first among them i...