How many classes of fire extinguishers are there?

Fire extinguishers are categorized into different classes based on the types of fires they are designed to combat. There are four primary classes of fire extinguishers, each designated for specific fire types:

1. Class A: Designed for ordinary combustibles such as wood, paper, and cloth.

2. Class B: Intended for flammable liquids and gases, including gasoline, oils, and paints.

3. Class C: Suitable for electrical fires, which can involve energized electrical equipment.

4. Class D: Used for fires involving combustible metals like magnesium, titanium, and sodium.

This classification system helps ensure that the right type of extinguisher is used for the right situation, enhancing safety and effectiveness in fire suppression. Knowing these classes is essential for firefighters and anyone involved in fire safety.