On the back, in the inside, you have hair cover. The old M48 gas mask didn't have this. Female soldiers, they can keep all their hair pretty much contained. Narrator: Recruits are expected to ...

recruits are briefed on the components of the gas mask, how to properly put it on, and how to clear it. Instructor: Get shoulder-to-shoulder! Narrator: We were not allowed to film inside the gas ...

Once inside, the conscripts ... was invited to re-enter the chamber without their masks, providing them with firsthand exposure to tear gas. The volunteers emerged with teary eyes and coughing ...

Now put your books down…and get your gas masks out. Quietly. Now take them carefully out of their boxes - no, no, Isobel, don't drag at it…you show her how to do it, Margaret, will you.