Coronavirus: Hong Kong bans ‘selfish’ valve-style masks from Covid-19 quarantine hotels

Hong Kong health authorities have banned from quarantine hotels the use of “selfish” masks with air valves after the design was blamed for a cross infection at one of the Covid-19 facilities.Authorities and experts have said the masks are only suitable for filtering out dust and contaminants in industrial settings.Hong Kong’s leading microbiologist, Yuen Kwok-yung, on Monday described the masks as “selfish” on the basis they only protected the user and not those around them because the valve…

Read the original article at South China Morning Post