Following the festival of Diwali, deterioration in the air quality levels has been rampant everywhere, particularly in Delhi-NCR, with the Air Quality Index plummeting to 'severe' category. Installing air purifiers can be one of the options to lessen the risk of developing pollution-related health problems. The other option can be to get an air purifying plant. But do they really work? We discuss the myths and facts with experts on this episode of FYI.