Article: The Armored-Vehicle Protective-Mask 3 History.(development of gas mask for use by military-tank personnel)

In addition to the modern use of chemical agents in war, armored vehicles (tanks) were used first in World War I. The crewmen who operated these armored vehicles required protection. Initially, these soldiers were masked with the same mask as the infantry, but proper use of the sights required the use of special masks. Since operating in a tank is like operating in a confined space, air had to be supplied. After extensive research, air suppliers or "collective protectors" were developed and issued to tankers. They required special masks or adapters for the standard mask to work properly. This is their story.

Early Efforts

The Chemical Warfare Service ...

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