Watch the sad news about the hero of Wuhan, Dr Li Wenliang. And short video on how to properly use your mask for maximum protection from virus and other pathogen. Don’t forget to subscribe,share, like and comment #surgicalmask #healthcareworker #COVID19 #WHO #novelcoronavirus #WHOdemonstration #DrLiWenLiang #properwaytousemask More info can always check up their website
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