Have a look at www.gehroTex.de!

British gas mask S10
used
colour: black
with straps to fit
in diffenrent sizes
- size 1 approx. forehead measurement of 60cm to 63cm
- size 2 approx. forehead measurement 58cm to 60cm
- size 3 approx. forehead measurement 56cm to 58cm
- size 4 approx. forehead measurement of 54cm to 56cm
Attention: There´s no guarantee for any protection effect!
A filter comes with the mask!