Air quality in India has deteriorated over the course of the last decade, with Delhi being a prime example of just how bad the situation is in the country. Last winter, the capital witnessed particulate matter (PM2.5) in excess of 500 (that's because most of the instruments could only record up to 500), making the air toxic. AC Score 4.5 For most major metropolitan cities in India, an air purifier is as essential as an air conditioner or water purifier, and there's no shortage of products catered to this segment.

Air quality is also terrible in China, with Beijing often credited as the most polluted city on Earth. Xiaomi has been offering a variety of air purifiers in its home market for some time now, and introduced the Mi Air Purifier 2 back in 2016. The company also sells an air quality monitor in China, and having used it for the past month, I'm convinced that Xiaomi should bring the product to India in the near future. Verizon is offering the Pixel 4a for just $10/mo on new Unlimited lines