Basics · 4 min read
When Not to Fight a Fire
The safest use of an extinguisher is sometimes not using it. Set the expectation before an emergency: people leave first when conditions are uncertain.
Leave if the fire is not small and contained
A portable extinguisher is intended for an incipient-stage fire. If flames are spreading across a room, reaching the ceiling, involving stored materials, or producing heavy smoke, evacuate.
Know the common stop signs
- You do not know what is burning.
- The correct extinguisher is not immediately available.
- Smoke reduces visibility or makes breathing difficult.
- The fire is between you and the exit.
- Your first attempt does not quickly reduce the fire.
These conditions can change in seconds. Employees should be allowed to leave without needing a supervisor’s permission when they see a stop sign.
Evacuate in a deliberate order
- 1Warn others — Activate the alarm or use your site’s emergency notification procedure.
- 2Call 911 — Give the address, business name, location of the fire, and any known hazards.
- 3Use the planned exit — Close doors behind you if safe, but do not lock them or delay your exit.
- 4Report to the assembly area — Stay available to account for people and direct responders.
Do not re-enter for personal items, to reset equipment, or to look for the source. Only the fire department should decide when re-entry is safe.
Special hazards call for early evacuation
Fuel gas, flammable liquid, lithium battery, chemical, and high-piled storage incidents can develop beyond a portable extinguisher’s capability quickly. Tell responders what is stored or involved.
- Keep safety data sheets accessible to management.
- Mark gas shutoffs and emergency contacts.
- Train staff not to handle leaking containers during a fire.
Train for the decision, not heroics
A good drill includes the decision to stop fighting and leave. Review your alarm, evacuation, assembly, and accountability procedures with every shift.
Common questions
- How big is too big for an extinguisher?
- If it is spreading, producing heavy smoke, reaching beyond its starting area, or cannot be controlled immediately, evacuate.
- Should an employee fight a fire alone?
- No. Alert others, call 911, and maintain an escape route. Do not rely on a lone employee to manage an emergency.
- What if an extinguisher runs out?
- Evacuate immediately and close the door behind you if safe. Do not search for another unit through smoke or flames.
Last reviewed August 2026. General guidance only — your local authority having jurisdiction has the final word on your building.