Covid: Should we double masks face coverings?

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There’s quite a lot of alternative about which kind of face overlaying to put on – and in some international locations the recommendation is altering as we study extra about how the virus spreads.

In sure international locations a selected sort of masks is required in public areas.

The BBC’s Science Editor David Shukman explains the variations between material masks, surgical masks and N95 masks – and appears at whether or not we must always double masks.

Produced by: Bella McShane, Ameer Ahmed and Parveen Virdi.

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