A Army Infantry soldier-in-training assigned to Alpha Company, 2nd Battalion, 58th Infantry Regiment, 198th Infantry Brigade, conducts chemical, biological, radiological and nuclear response (CBRN) training November 04, 2022 at Britten Range on Sand Hill. After a few minutes in a room known as the Confidence Chamber, trainees are required to remove their masks for a brief period. Inhaling CS gas, or tear gas irritates mucous membranes in the eyes, nose, mouth and lungs, causing tearing, sneezing, coughing, etc. This exercise stresses the importance of proper fit and trust in their protect


A Army Infantry soldier-in-training assigned to Alpha Company, 2nd Battalion, 58th Infantry Regiment, 198th Infantry Brigade, conducts chemical, biological, radiological and nuclear response (CBRN) training November 04, 2022 at Britten Range on Sand Hill. After a few minutes in a room known as the Confidence Chamber, trainees are required to remove their masks for a brief period. Inhaling CS gas, or tear gas irritates mucous membranes in the eyes, nose, mouth and lungs, causing tearing, sneezing, coughing, etc. This exercise stresses the importance of proper fit and trust in their protective equipment.


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Keywords: basic, chamber, gas, infantry, mask, osut, trainee, training