How to wear mask properly by World Health Organization | #CoronaVirus |#China |#SARS |#MERS |#N95

Wearing a face mask does help if you do it properly.

Seto Wing Hong of Hong Kong University demonstrates the correct way to wear a face mask amid the coronavirus outbreak.

World Health Organization,Corona Virus,Sars,mers,Wuhan China,N95,Doh,Woh,Moh,