07/21/20
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https://health.economictimes.indiatimes.com/news/industry/valved-n-95-masks-dont-cut-covid-spread/77098496
Times News Network
New Delhi: The director general of health services in a letter to states has made it clear that the use of βvalved respirator N-95 maskβ is detrimental to the measures adopted for preventing the spread of coronavirus, as it does not prevent the virus from escaping out of the mask.
Health ministryβs officer on special duty Rajesh Bhushan reiterated on Tuesday that βif an asymptomatic person is wearing a valved N-95 mask, then the propensity of that person infecting others existsβ.
βThis is an evolving situation and if weβre introduced to new facts that may require us to change the current advisory, then weβll do so,β he added.
On Monday, DGHS Dr Rajiv Garg
said in a letter to the national health mission and to all principal
secretaries (health) in states that βit has been observed that there is
an inappropriate use of the N-95 mask (particularly with valved
respirator) by the public other than designated health workersβ.
In
his letter he goes on to cite the advisory of the health ministry
(available on the ministryβs website) on the use of home-made protective
cover for face and mouth. He has asked the state authorities to
instruct all concerned to follow guidelines on use of face and mouth
coverings and prevent inappropriate use of N-95 masks.
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