According to IQAir’s fifth annual World Air Quality Report 2022, India was the eighth-most polluted nation in the world in 2022, with a yearly average PM2.5 concentration of 53.3 micrograms per cubic metre. Out of the 50 cities on the ranking of the most polluted in the globe, 39 are in India. Image Credit: Dyson According to the study, India is the eighth most polluted nation in the globe, with Delhi ranking fourth. Other sources of pollution include manufacturing facilities, coal-fired power stations, and biomass burning, which account for 20-35 per cent of PM2.5 pollution. This means that breathing Delhi’s air can have serious health consequences, such as respiratory infections, asthma, allergies, cardiovascular diseases and even cancer. To protect yourself and your family from these harmful effects, you need a good air purifier that can effectively filter out the pollutants and allergens from the indoor air. Here are five air purifiers that would suit residents in Delhi, e