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.