CO2 fire extinguishers combat Class B fires involving flammable liquids such as solvents, paraffin, petrol, diesel or oil. They also tackle electrical fires, such as those caused by large computer equipment, meaning that CO2 fire extinguishers are more common in office spaces, computer rooms, schools and server areas too.

CO2 (carbon dioxide) fire extinguishers can be typically found in offices, shops, schools, hospitals, technology stores, server rooms and computer rooms.

Once released into the air, liquid carbon dioxide extinguishers work by starving the fire of oxygen. This ensures that flames don't spread and the fire is extinguished.

This depends entirely on what you are trying to extinguish, below are some examples of fires you could encounter.

• Class A –Solid Combustibles (wood, paper, cloth etc.)

• Class A Fire Extinguishers – Water, Water Additive, Dry Powder and Wet Chemical

• Class B –Flammable Liquids (oils, solvents, alcohol, gasoline etc.)

• Class B Fire Extinguishers – CO2, Dry Powder and Foam

• Class C –Flammable Gases (propane, butane, petroleum gases etc)

• Class C Fire Extinguishers – Dry Powder

• Class D –Flammable Metals (magnesium, sodium, potassium, calcium, titanium etc.)

• Class D Fire Extinguishers – Specialist Dry Powder (M28, MonneX and L2)

• Electrical – Electrical Fires

• Fire Extinguishers for Electrical Fires – CO2 and Dry Powder

• Class F – Flammable Cooking (cooking oils and fats)

• Class F Fire Extinguishers – Wet Chemical