Health
Best and worst face masks for stopping the spread of coronavirus – 7NEWS.com.au
Knowing what face masks to wear is imperative in helping stop the spread of coronavirus.

Face masks.
If youve not got one yet, youre probably thinking about it as the coronavirus pandemic continues to cause havoc around the globe.
Thats why a group of researchers at Duke University created a simple technique to analyze the effectiveness of various types of masks which have become a critical component in stopping the spread of the virus.
The quest began when a professor at Dukes School of Medicine was assisting a local group buy masks in bulk to distribute to community members in …
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