A gas mask is used to filter out toxic agents in the air.
Gas mask was created in 1914.
I think it stopped gas getting in the mask...
A person wearing a gas mask.
M65 Gas Mask.
The main part of the gas mask is made out of rubber.
its a mask made for ariabians
It's just called a gas mask.
They use the military varient of the Gp7 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.
What was the original problem the gas mask was designed to address
Edward Frank Harrison, in 1915, is generally credited with inventing the gas mask.
It is not normal for a military gas mask to fog up.