CO2 fire extinguishers are suitable for which class of fires?

CO2 fire extinguishers are specifically designed to combat Class B and Class C fires.

Class B fires involve flammable liquids and gases, such as oil, gasoline, and various chemicals. CO2 extinguishers work effectively in these situations because carbon dioxide can displace oxygen and smother the flames, thereby preventing re-ignition.

Class C fires are those involving electrical equipment. CO2 is non-conductive and leaves no residue, making it an ideal choice for extinguishing fires that involve live electrical components. This characteristic ensures safety and minimizes damage that might occur with other types of extinguishing agents.

In contrast, CO2 extinguishers are not suitable for Class A fires, which involve ordinary combustibles like wood, paper, and textiles, as they do not provide the cooling effect required to safely extinguish these types of fires. Therefore, understanding the appropriate classes for which CO2 extinguishers are effective is crucial for proper fire safety and response.