it is for 'out' innit?
expiratory valve
so the breath doesnt go up the schnozz and fog glasses
which totally defeats the idea which was doomed to failure wivvart the buttony thing in da first place
hence all the woodgy woodgy of scientists THINK it MIGHT be a good thing
- some scientists are sure it isnt ( moi reellement) because of the cough plates done fifty to a hundred years ago
( no difference in count wiv or wivvart a mask)
oh joke coming up
had to use my college scarf ( yeah from 50 yearn agoo ) in the supermarket- so
for sale - one tit hall scarf for sale £1 - 19/6 for the scarf and 6d for the dried gob. Must be sold as an ensemble