I live in Northern India which has heavy air pollution. I recently bought an air purifier. Just the difference in the quality of sleep is amazing. And it is not a placebo effect. The filters are already visibly grimy. The PM 2.5 consistently now is around mid 20s down from around 180-190.
I would recommend it to all in North India who can afford it, esp households with small children.
I would recommend it to all in North India who can afford it, esp households with small children.