Why a car air purifier may not be a luxury but a necessity instead...

I remember a time when having an air conditioner or a television set was a luxury for a middle class family. A time before that when having an Ambassador was a status symbol. The difference there was that they were non-essential objects that slowly became a necessity in our lives as the years moved on. They were, however, not life-saving.
The simple act of breathing is. And whether you are aware of it or not, if you live in any large city in India, the chances are your lungs are already taking...