What is the role of Nitrogen in the OC canister?

• A. It is the liquid carrying OC
• B. It is the gas used to pressurize the canister
• C. It is the active ingredient
• D. It is used to color the spray

Answer: (B)

Nitrogen acts as the propellant. When the canister is activated, the pressurized nitrogen gas expands and pushes the OC solution out through the nozzle, delivering the spray. It’s not the liquid carrier for OC nor the active irritant itself, and it doesn’t color the spray. Nitrogen is chosen because it’s inert and non-flammable, providing safe, stable propulsion across different temperatures and conditions.