Educated consensus seems to be established that the general public wearing face masks
is a pointless false sense of security..

But some 'experts' are still recommending such protection,
and news reports show global wearing of makeshift scarves, tea towels, and hankies, etc..

Wrapping our heads in cling film and breathing through a snorkel...???

Is there actually a serious definitive conclusive scientific/governmental decision on this matter...???