“Valve masks are only needed for medical professionals performing their professional duties.
They make it easier to exhale, but at the same time a person, if he is infected, gives all his viruses to those around him, ”RIA Novosti quoted Lebedev as saying.
He stressed that some airlines no longer allow passengers with such masks on board, because they do not prevent the spread of the virus.
Earlier, the deputy director for scientific work of Rospotrebnadzor, Alexander Gorelov, said that the mask regime in Russia will be maintained until the coronavirus infection COVID-19 becomes seasonal.