right depends on what the mast was being used for. even todays masks do not provide protection from everything. during WWI and II, the gas masks were pretty good. it was just such a hassle to put them on in time and try to fight while wearing them.
Right At Your Door.
You needed to take a gas mask in case their was a gas attack.
In case of supprise gas attacks. Everyone had to take their gas mask with them where ever they went.
Gas mask was created in 1914.
Click on the blue shirt in the top right corner. Then click on the mask, but you don't need it.
A person wearing a gas mask.
I think it stopped gas getting in the mask...
A Gas MAsk certainly
Both helmet and gas-mask .
A gas mask is used to filter out toxic agents in the air.
M65 Gas Mask.
The main part of the gas mask is made out of rubber.