Health experts call for ban on ‘selfish’ valve-style masks in Hong Kong quarantine facilities

Hong Kong health experts have called for a ban on masks with air valves in quarantine facilities after one of the “selfish” face coverings was blamed for a recent coronavirus cross infection in a local hotel.The cross infection attributed to the valve-style masks – which authorities say are only suitable for filtering out dust and contaminants in industrial settings – was first identified on Monday, and forced guests in 12 other rooms on the same floor of the quarantine hotel to extend their…


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