When it comes to fire safety, every second counts — and using the right type of fire extinguisher can make all the difference. Many people assume all extinguishers work the same way, but in reality, each type is designed for specific kinds of fires. Choosing the wrong one can make the fire even worse.
In this guide, we’ll explain the different types of fire extinguishers, their color codes, and where to use (and not use) each one.
Color Code: Black
Suitable for: Class B & C fires
CO₂ extinguishers are filled with highly pressurized carbon dioxide gas. They work by displacing oxygen and cooling the flames, making them ideal for fires caused by flammable liquids (petrol, diesel, oils, paints) and electrical equipment such as computers and wiring systems.
Where to use:
Flammable liquids (petrol, diesel, paints, oils)
Energized electrical fires (equipment, wiring)
Where not to use:
Wood, paper, or textile fires (Class A)
Cooking oils and fats (Class F fires)
Tip: Always hold the horn by its handle, as the nozzle becomes extremely cold and can cause frost burns.