Fire extinguishers are placed throughout public works shops, garages, vehicles, and facilities to provide a first line of defense in a small fire. Knowing when to use an extinguisher, how to discharge it correctly, and when to evacuate can prevent serious property damage and injuries. This guide helps supervisors teach workers the fundamentals of safe and effective fire extinguisher use.
By the end of this training, workers should be able to:
• Understand the basic classes of fires and the correct extinguisher for each.
• Identify parts of a fire extinguisher and understand inspection requirements.
• Decide whether a fire is safe to fight or if evacuation is the proper action.
• Use the PASS method to operate an extinguisher correctly.
• Maintain a safe exit path and communicate clearly during a fire emergency.
• At least one ABC fire extinguisher for demonstration
• Class specific extinguishers if available (CO2, water, Class D)
• Fire extinguisher inspection tag or checklist
• Training handout with PASS steps
• Cones or tape to mark a safe practice zone
• PPE: safety glasses, gloves (optional), high visibility vest for outdoor demos
"Good morning everyone. Today we are going to review how and when to use a fire extinguisher. These tools can stop a small fire from turning into a major incident, but only when used correctly. We will look at different types of fires, how extinguishers are labeled, and the PASS method for safe operation. Remember, safety comes first. We only fight a fire when it is small, contained, and we have a clear exit path."
• Using the wrong extinguisher type on an electrical or flammable liquid fire
• Fighting a fire that is too large or spreading too quickly
• Reduced visibility from extinguisher discharge
• Burns from radiant heat or unexpected flare ups
• Slips or falls on wet or foam covered surfaces
• Exposure to smoke or toxic fumes
Understand fire classes:
• Class A: ordinary combustibles like wood and paper
• Class B: flammable liquids
• Class C: electrical equipment
• Class D: combustible metals
• Class K: cooking oils and fats
Select the correct extinguisher for the type of fire. Most shops use ABC multipurpose extinguishers.
Inspect extinguishers monthly according to your agency policy. Check pressure gauge, pin, nozzle, and physical condition.
Only attempt to extinguish a fire if it is small, not spreading, and you have a safe exit path behind you.
Alert others and call emergency services before attempting to fight a fire.
Use the PASS method:
• Pull the pin
• Aim at the base of the fire
• Squeeze the handle
• Sweep side to side
Keep low to avoid smoke and maintain awareness of your surroundings.
Back away after the fire appears out and watch for rekindling.
Do not turn your back on a fire.
Stop using the extinguisher if conditions worsen or if you feel unsafe. Evacuate immediately.
• Show the different extinguisher labels and explain fire classes.
• Demonstrate how to check the pressure gauge and inspection tag.
• Walk through the PASS steps using an uncharged or training extinguisher.
• Demonstrate maintaining an exit path and keeping a safe distance.
• If possible, simulate a small controlled practice scenario using an inert training extinguisher.
• Have the crew inspect several extinguishers and identify issues such as low pressure or damaged hoses.
• Ask volunteers to demonstrate the PASS method.
• Provide short scenarios and ask the crew whether they should fight the fire or evacuate.
• Have workers identify where extinguishers are located in your shop, vehicles, and storage areas.
• How do you decide if a fire is safe to fight?
• What could happen if you choose the wrong extinguisher type?
• Why is it important to aim at the base of the fire?
• Where are extinguishers located in your facility or vehicles?
• What should you do after using an extinguisher, even if the fire is out?
Insert your agency’s policies for monthly extinguisher inspections, required documentation, recharge procedures, and emergency reporting requirements. Include any local fire marshal or insurance inspection rules.
• Safety glasses
• Heavy duty work gloves when handling hot or damaged equipment
• Safety boots with slip resistant soles
• High visibility vest when performing outdoor demonstrations
• Respiratory protection only when required by agency policy or specific fire conditions
• Know the fire classes and extinguisher types.
• Inspect extinguishers regularly.
• Only fight small, early stage fires.
• Use the PASS method.
• Maintain a safe exit at all times and evacuate if conditions worsen.
What does the PASS method stand for?
(Short answer)
Which fire class involves flammable liquids?
a. Class A
b. Class B
c. Class C
What is the first thing you should do before trying to fight a fire?
a. Run for water
b. Call for help and alert others
c. Get as close to the fire as possible
True or False: You can use any extinguisher on any fire.
When is a fire too dangerous to fight with an extinguisher?
(Short answer)
Thank you to our primary sponsor, Roadwurx, which is a simple asset management platform for small public works and road departments.