Air purifier sales surge as Delhi grapples with 'severe' pollution

Once a luxury product, air purifiers have increasingly become a necessity as sales surge amid a rise in Delhi's pollution levels that are now just a notch below the 'Severe Plus' category. According to Central Pollution Control Board data, Delhi's overall Air Quality Index (AQI) stood at 426 at 9.30 am on Friday. An AQI of above 400 is considered 'Severe' and can affect healthy people and seriously impact those with existing illnesses. On Thursday, the 24-hour average AQI stood at 450 at 4 pm, just a notch below the 'Severe Plus' category.

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