What tear gas is used for US Military Gas Chamber drills?

U.S. Army photo by Sgt. Kimberly Menzies. Military.com ... The gas chamber is a room that has a controlled concentration of CS (orto-chlorobenzylidene-malononitrile) gas, more commonly known as tear gas. ... I will explain to you the most common method Drill Sergeants use to move the recruits through the gas chamber. read more

It is essentially, CS or Riot Control gas. What makes it so harsh is that you are in a small confined room when exposed. It makes your eyes burn so bad everything is fuzzy, it will make snot run and hang 8 inches below your nose. read more

The gas chamber is a room that has a controlled concentration of CS (orto-chlorobenzylidene-malononitrile) gas, more commonly known as tear gas. Tear gas is the active ingredient in Mace™ and used for self defense and for riot control by the police. read more

Then the Soldiers assembled on the bleachers under the cool trees for a final briefing. The drill sergeants and instructors seemed to enjoy this part, scaring the trainees with vivid descriptions of exposure to the CS nerve gas (aka tear gas) they would soon face in the gas chamber. One asked who had milk that morning. Many raised their hands. read more