Probably right when they started using poison gas because they already knew about poison gas from World War 2
Chaimblerlin
yes................
Gas masks.
apples
no
Tires for trucks and planes soles for shoes gas masks and oxygen masks
14 Sept 1939
They were called Gas Masks
hgokfu6df green koala
You can never truly know thousands where given to solders in the First World War. In the Second World War even more where give to solders and civilians. Then in to the Cold War Russia and the USA made millions and today almost every modern army has some sort of gas mask. My answer is that as much as a billion where given out or sold but many will not give any protection or contain asbestos.
everyone
yes................
Gas masks.
apples
no
Gas Masks
they wore masks
they were all issued gas masks