How effective is air purifier in Delhi to use in the room?
How effective is air purifier in Delhi to use in the room? When we talk about air pollution, we have a clear vision of our “Capital city Delhi” in our mind. Referring to the survey conducted by WHO in about 1650 cities, “Delhi- The heart of India” was declared as the most polluted city of India, which definitely affected the neighbouring districts- Kanpur, Faridabad, Patiala and many more.