One of winter's abiding traditions is that it's time bring out the blankets. For the past few years, and then some, Delhi has had one more: it must endure a smog blanket that invariably covers the national capital region (NCR) in a snug hug that literally chokes your lungs.
No wonder, then, that air purifiers, once a winter luxury usually for those with respiratory disorders, have quietly become a year-round fixture in most homes. From Rs 5,000 budget units to Rs 40,000 smart purifiers and Rs 2-lakh premium systems, the 'right to breathe' has officially made a place for itself

)