The purpose of the gas mask was to protect the wearer from inhaling airborn pollutants and toxic gases, they were also used to stop viruses and diseases
Gas mask was created in 1914.
A person wearing a gas mask.
I think it stopped gas getting in the mask...
A gas mask is used to filter out toxic agents in the air.
The main part of the gas mask is made out of rubber.
M65 Gas Mask.
A gas mask
a gas mask box is a brownmedium sized box which contained a gas mask and a few other things
its a mask made for ariabians
They use the military varient of the Gp7 gas mask.
It's just called a gas mask.
No they don't, Gas Mask filters are designed not to go bad despite if the lid is unscrewed off, unscrewing the lid of a gas mask filter doesn't have any effect on the gas mask or it's filters.