Fires can start anywhere — in homes, offices, or industrial sites — and acting quickly can prevent serious damage or injuries. However, not all fire extinguishers are the same. Using the wrong type can be ineffective or even dangerous. Understanding the different types of fire extinguishers and what they are designed for is crucial for workplace and home safety.
At FTS Safety, we provide guidance and support to help businesses stay safe and compliant with fire safety standards.
1. Water Fire Extinguishers
Use For: Class A fires – ordinary combustibles such as wood, paper, cloth, and plastics.
How It Works: Water cools the burning material, reducing the heat and stopping the fire from spreading.
Important Note: Never use water extinguishers on electrical or flammable liquid fires.
2. Foam Fire Extinguishers
Use For: Class A and Class B fires – solids like wood and paper, as well as flammable liquids such as petrol, diesel, and paints.
How It Works: Foam creates a barrier between the fuel and the fire, suppressing flames and preventing re-ignition.
Ideal For: Workshops, garages, and fuel storage areas.
3. Carbon Dioxide (CO₂) Fire Extinguishers
Use For: Class B and electrical fires – flammable liquids and electrical equipment.
How It Works: CO₂ displaces oxygen around the fire, suffocating it without leaving residue.
Ideal For: Offices, server rooms, and areas with sensitive electrical equipment.
4. Dry Powder Fire Extinguishers
Use For: Class A, B, and C fires – solids, flammable liquids, and flammable gases.
How It Works: Dry powder coats the fuel, interrupting the chemical reaction and stopping the fire.
Important Note: Dry powder can leave residue and is not ideal for electrical equipment or indoor areas where clean-up is a concern.
5. Wet Chemical Fire Extinguishers
Use For: Class F fires – cooking oils and fats (common in kitchens).
How It Works: Wet chemical extinguishers cool the fire and create a soapy layer, preventing re-ignition.
Ideal For: Restaurants, cafeterias, and kitchens in workplaces or homes.
Key Takeaways
- Always match the extinguisher type to the fire class to ensure safety and effectiveness.
- Regular inspection and maintenance of extinguishers are crucial to ensure they function when needed.
- Educate staff and family members on how to use fire extinguishers correctly.
How FTS Safety Supports Fire Safety
At FTS Safety, we help businesses identify the right fire safety equipment for their workplace, including selecting and maintaining fire extinguishers. We also provide guidance on:
- Fire prevention and risk assessments
- Training on safe use of extinguishers
- Creating emergency response plans
Investing in the right fire safety equipment and training can save lives and reduce property damage.