Fire Fighter Industry - April 2026
How to Use a Fire Extinguisher Properly - PASS Explained
You bought a fire extinguisher. Good. That's a great first step. But here's the honest question: if a fire started right now, would you actually know how to use it? Fire extinguishers look straightforward until you're standing in front of a real fire, adrenaline spiking, and you can't remember which end is up. That's exactly why there's a method. It's called PASS, and once you understand why each step works it becomes second nature.
Image source: Koorsen Fire and Security
First, A Word on Time
When a fire starts, you have roughly two to three minutes before a small, manageable fire becomes a room-filling one. That window shrinks further if there's no smoke alarm to alert you early. This is why the best fire safety setups involve two things working together: an early-warning system that alerts you the moment smoke appears, and a fire extinguisher you know how to use when you get there. Modern interconnected smoke detectors where all units alarm simultaneously when one triggers are designed precisely for this. If a fire starts in your kitchen while you're asleep in the bedroom, you need that alarm to reach you, not just sound in an empty room. Once you're at the scene and the fire is still small, that's when PASS takes over.
Ensure you have the right protection — view our FF Smoke Detector Plus
What Is PASS?
PASS is a four-step technique used by firefighters and trained responders the world over:
P — Pull the pin
A — Aim at the base of the fire
S — Squeeze the handle
S — Sweep side to side
Simple enough to remember. But understanding why you do each step is what makes you effective under pressure.
PASS (fully) explained:
1. Pull the Pin
Image source: crispladewfire
The pin is a safety lock that prevents accidental discharge. Pull it straight out — some pins have a plastic tamper seal, break through it and move on. Once the pin is out, the extinguisher is live.
2. Aim at the Base
Image source: vitalshealthcare
A natural instinct when you see flames is to aim at them. But spraying at the top of a fire is like trying to put out a candle by blowing on the flame without blocking the wax — you're attacking the symptom, not the source. Fire needs three things to keep burning: heat, oxygen, and fuel. The base of the fire is where the fuel is — paper, oil, wiring, fabric. That's where ignition is happening, and that's where you need to cut it off. When you aim at the base, your agent smothers the fuel source and interrupts the combustion cycle at its origin. The flames above are a result of that reaction — cut off the base, and they die on their own. Aiming too high means your agent disperses into the air without ever reaching the fuel. Practical tip: Stand 1.5 to 2.5 metres back. Too close and you risk spreading burning material; too far and your discharge loses effectiveness.
3. Squeeze the Handle
Image source: evolutionfire
Apply firm, steady pressure - don't jab it on and off. A standard 3kg dry powder extinguisher discharges fully in roughly 9 to 12 seconds, so don't waste the first few getting settled. Be positioned and ready before you squeeze. Dry powder extinguishers are the most practical choice for Malaysian homes and small offices. It covers Class A fires (wood, paper, fabric), Class B (flammable liquids like petrol and cooking oil), and Class C (electrical equipment) — the three most common types you're likely to face.
4. Sweep Side to Side
Image source: sc.edu
Sweep the nozzle slowly from side to side across the full width of the fire. The base of a fire is rarely a single pinpoint — fuel is spread across a surface. Holding the nozzle still means you extinguish one patch while the rest keeps burning and spreads back into the area you already treated. Sweeping lays down an even blanket of agent across the entire fuel surface. Keep sweeping until the fire appears out, then hold at the base for a few extra seconds. Don't stop the moment flames disappear.
How Do You Know the Fire Is 100% Out?
Visible flames going out does not mean the fire is extinguished. Here's what to check:
No glowing embers. Smouldering material — wood, fabric, paper — can re-ignite with no visible flames. Any orange or red glow means the fire is still alive.
No smoke rising from the source. Some smoke after discharge is normal (that's your agent dissipating), but smoke actively rising from the fuel itself means it's still burning.
No significant heat radiating from the surface. Residual heat in fabric, foam, or wood can cause re-ignition even when it looks out.
The area stays calm for 30 seconds. Step back and watch. If you see any re-ignition, discharge again immediately.
One note on dry powder specifically: the white cloud during discharge makes it very difficult to see the fuel surface. Wait for the powder to settle before making a call — many people mistake the cloud for the fire being out.
What to Do After the Fire
Ventilate. Dry powder residue causes respiratory irritation. Open windows and doors immediately.
Check for spread. Look inside cupboards, behind walls if wiring was involved, beneath flooring. Heat travels in unexpected directions.
Report it. If you're in a condo or apartment, inform building management. If there was any electrical involvement, contact BOMBA for a post-incident inspection before restoring power to the affected area.
Find the cause. Overloaded extension lead? Unattended stove? Faulty appliance? Until you know what started it, the hazard still exists.
Replace your extinguisher. A used extinguisher — even partially discharged — cannot be relied upon again until refilled and re-pressurised. Don't put it back on the wall and assume it still works. It doesn't.
Know When to Leave
An extinguisher works when the fire is small and contained, you have a clear exit behind you, and you haven't already inhaled significant smoke. If the fire is growing faster than you can manage, or smoke is filling the room — leave. Close doors behind you to slow the spread, get everyone out, and call 999. No possession is worth your life.
A Note on Confidence
The biggest reason extinguishers fail people isn't mechanical — it's psychological. People freeze because they've never held the canister, never practised the grip, never thought through where they'd stand in their own kitchen. You don't need to discharge it to practise. Pick it up. Walk through the PASS steps dry. Feel the weight. Know where you'd position yourself. Thirty seconds of familiarity can be the difference between acting and hesitating.
