ShaswatFabric #facemasks shd consist of "at least three layers of different material" in order to be effective, #WHO says.
However, those aged over-60 and with underlying health risks should wear medical masks in areas where there is #CommunityTransmission https://www.bbc.com/news/health-52945210
However, those aged over-60 and with underlying health risks should wear medical masks in areas where there is #CommunityTransmission https://www.bbc.com/news/health-52945210