Is OC spray appropriate to use inside a vehicle or other confined space?

• A. It is never advised to use OC spray inside a vehicle or confined space.
• B. It is generally discouraged due to high drift risk and limited ventilation; only under policy with caution when necessary.
• C. It is standard practice to use inside confined spaces whenever there is a threat, regardless of ventilation concerns.
• D. It should be avoided only in outdoor settings.

Answer: (B)

The situation in a vehicle or confined space creates a high exposure risk because the spray concentrates in limited air and has little opportunity to disperse. Ventilation is poor, so the irritant can linger and affect the person targeted as well as bystanders and the operator, increasing the chance of secondary exposure, coughing, and respiratory irritation. Because of this, using OC spray inside confined spaces is generally discouraged. It is only considered under policy with caution when there is no safer alternative, and with specific safeguards in place to minimize risk, such as ensuring others can exit to fresh air, using the smallest effective amount, and taking steps to maximize any available ventilation. In open, outdoor settings, these concerns are reduced due to better air movement and faster dissipation.