The Directorate General of Health Services (DGHS) has warned against the use of N-95 valved respirator masks.
DGHS said, “It has come to our knowledge that the use of valved respirator N-95 masks is detrimental to the measures adopted for preventing the spread of coronavirus as they do not prevent the virus from escaping out of the mask. In view of the above, I request you to instruct all concerned to follow the use of face/mouth cover and prevent inappropriate use of N-95 masks.”
Union Health Ministry has also issued a letter to health ministries of all states and union territories for spreading awareness to not use of the mask which have respiratort valves in it. According to some reports the N-95 masks with respiratory valves are may not be appropriate for restraining the spread of the coronavirus.