Many countries around the world are either advising people to wear face masks in public or even making it mandatory. But what is the science behind mass mask wearing?
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Will it really protect you from Covid-19? Or is it something that adds a sense of security without any of the actual benefits?
In this video, we look at the debate around face mask wearing among the public - and talk to a range of voices to get to the bottom of this seemingly simple but actually rather complex topic.
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