What is the purpose of a B fire extinguisher?

The purpose of a B fire extinguisher is specifically to combat fires involving flammable liquids, such as gasoline, oil, grease, paint, and solvents. These types of fires can be especially hazardous, as they can spread quickly and may not be easily extinguished with water. Instead, B extinguishers use agents like carbon dioxide or dry chemical powders that can suffocate the flames or break the chemical reaction fueling the fire.

In the context of fire safety, it is crucial to use the right type of extinguisher for the corresponding class of fire to ensure safety and effectiveness. For example, using a water extinguisher on a flammable liquid fire could exacerbate the situation, as water may cause the burning liquid to spread. Therefore, understanding the classification of fire extinguishers is essential for effective fire prevention and management.