What is a risk of using an extinguisher near a person with a respiratory condition?

• A. The discharge can cause smoke, chemical exposure, or inhalation hazards; evacuate if needed.
• B. It cleans the air and improves breathing.
• C. It has no effect on respiratory conditions.
• D. It will cause a loud noise but no harm.

Answer: (A)

Using an extinguisher near someone with a respiratory condition can create airborne hazards that irritate or stress the lungs. The discharged agent—whether a dry chemical powder, CO2, foam, or water mist—can be inhaled or come into contact with mucous membranes, triggering coughing, bronchospasm, or breathing difficulty in sensitive individuals. In addition, the plume from the discharge adds smoke and chemicals to the air, and in enclosed spaces CO2 can displace oxygen, posing a danger to breathing. Because of these risks, move the person away from the extinguishing area and evacuate if needed, while addressing the fire safely.