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Does wearing a mask indoors protect you even if nobody else is wearing one?

Sep, 20211:37 watch
LearnEmergency preparednessDoes wearing a mask indoors protect you even if nobody else is wearing one?

Does wearing a mask indoors protect you even if nobody else is wearing one?

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Although masks work best when everyone in a room is wearing one, there is evidence that they also protect whoever is wearing one in a room of mask-free individuals.

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