Standard face coverings are just “comfort blankets” that do little to reduce the spread of Covid particles, a scientist advising Sage on ventilation has said.
Dr Colin Axon, who has advised the government on minimising the risk of cross-infection in supermarkets, accused medics of presenting a “cartoonish” view of how how tiny particles travel through the air.
He warned some cloth masks have gaps which are invisible to the naked eye, but are 500,000 times the size of viral Covid particles.
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