Health experts have said that in India no study has been done to find out how authentic and efficient the respirators and air purifiers are. AIR PURIFIERSDoctors are not satisfied with the functioning of air purifiers as well. Arvind Chabra, country-head of Blue Air, a company selling air purifiers, claimed that in the last one month, sales of air purifiers have gone up by 8 to 10 times and these are highly effective ones that are made by having followed international standards guidelines. Accepting the fact that air purifiers should be used as per the size of the room, Chabra informed Mail Today: "Even renowned schools have contacted us for the placement of air purifiers there. "It should be noted that the N-95 and N-99 masks are not advisable for asthmatic and COPD patients at all.

Source: India Today December 05, 2017 00:22 UTC