Spain is facing another debate about face masks. At the beginning of the coronavirus pandemic, Spanish health authorities did not recommend the use of face masks, partly because there were not enough to supply everyone. One year on, non-medical face masks continue to be allowed, even though health experts say they are not safe, given what is now known about how the virus is spread, and the emergence of new, more contagious strains, such as the B.1.1.7 variant detected in the United Kingdom. But if FFP2 masks â theoretically the most effective at stopping the virus â were mandatory, ...