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Medical masks best, cotton good, bandanas worse: droplet study

Professionally-fitted N95 masks - hospital-grade protection worn by frontline workers in hospitals - reduced droplet transmission to less than 0.1 per cent.

[WASHINGTON] Health experts have determined that face coverings are a vital tool in reducing the spread of coronavirus - but little research has been done into how different kinds of masks compare.

A new study has ranked 14 types of commonly available mask, finding that medical masks...

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