How to choose and use a fire extinguisher

Choose the right fire extinguisher.

Different fires need different extinguishing agents.
- Class A: For materials like paper and wood.
- Class B: For flammable liquids like gas and oil.
- Class C: For electrical equipment.
- Class D: For metals.
- Class K: For oils and fats used in cooking.
Most home extinguishers are a combo of Class A, B, and C. They can put out most small fires.
Only use extinguishers on small fires.

Think the size of a small trashcan. Make sure it’s contained and not growing. If you have any doubt, call your fire department.
Learn to PASS.

PASS is an easy way to remember how to use a fire extinguisher:
- Pull the pin.
- Aim low at the base of the fire.
- Squeeze the lever slowly.
- Sweep the nozzle from side to side.
Adults – not kids – should use extinguishers.

When teaching kids about fire safety, tell them that the extinguisher is not a toy. They should get an adult for help.
Check your extinguisher monthly and service yearly.

Each month, make sure your extinguisher is fully charged, isn’t damaged, and doesn’t have a blocked nozzle. Each year, have your extinguisher serviced by an SFMO-licensed portable fire extinguisher company.
Dispose of your extinguisher safely.

Discharge any material in the extinguisher away from structures and people. Take empty fire extinguishers to a fire station or home improvement store.

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