Multi-purpose extinguishers are useful in combating which of the following fire classes?

Multi-purpose extinguishers are designed to combat fires across multiple classifications, specifically Class A, B, and C fires. Class A fires involve ordinary combustibles such as wood, paper, and cloth, making them common in residential and commercial settings. Class B fires involve flammable liquids like gasoline, oil, and paint, which require extinguishing agents that can effectively smother or cool the burning fuel. Class C fires involve energized electrical equipment, where using a non-conductive extinguishing agent is essential to ensure safety.

The versatility of multi-purpose extinguishers means they can effectively address these varying fire scenarios, providing broader protection compared to extinguishers limited to a single fire class. Therefore, having a fire extinguisher that can combat Class A, B, and C fires allows for a more comprehensive fire safety strategy in environments where any of these materials might be present. This multi-purpose capability is crucial for situations where the specific type of fire may not be immediately identifiable, ensuring that the responder has the right tools to address the situation effectively.