Delhi's air quality index (AQI) hit 460 on Friday, the worst so far this year, prompting the implementation of a fresh set of measures under the Graded Response Action Plan for air pollution.
The air quality in Delhi has worsened since the start of November, with AQI levels reaching as high as 700 in some regions. Here is a list of recommended gadgets that will help you maintain your idoor air quality and prevent breathing problems.