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Should you wear a face mask?

Tim Harford looks at the debate over making your own Covid-19 protection.

Do face masks stop you getting coronavirus? You might instinctively think that covering your mouth and nose with cloth must offer protection from Covid-19. And some health authorities around the world say people should make their own masks. But expert opinion is divided. Tim Harford and Ruth Alexander unpick the arguments.

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9 minutes

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