The Union Health Ministry cautioned against the use of N-95 valved respirator/masks – which is basically the raised plastic disk that is embedded in the fibre – stating that it does not prevent the novel Coronavirus from spreading out of the mask.
About:
N95 masks are personal protective equipment that protects the wearer from airborne particles and from liquid contaminating the face. N95 masks are worn mostly by healthcare workers.
N95 masks filter about 95 per cent of particles smaller than 300 nanometres (1 nm is a billionth part of a metre). SARS-CoV-2, the virus that causes Covid-19, however, is in the size range of 65-125 nm.
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