Can air purifiers and masks protect you from the poisonous Delhi air?
With worsening smog levels turning Delhi (NCR) into a virtual gas chamber, demand for air purifiers and masks is at an all-time high. Delhi experienced the worst smog in 17 years after Diwali, with PM2.5 readings, which have a safe limit of 60 micrograms per cubic meter, having gone up to an alarming 900 in some parts of the city last week. The situation triggered a spurt in the purchase of air purifiers and masks in the national capital. “I [...]