The main purpose of a fire extinguisher is to extinguish or control small fires and prevent them from spreading. Fire extinguishers are essential safety devices found in homes, workplaces, and vehicles, serving as a first-line defense against fire emergencies. They operate by ejecting various substances, such as water, foam, dry chemicals, or CO2, designed to interrupt the combustion process. Different classes of extinguishers are available depending on the type of fire—such as those caused by combustible materials, flammable liquids, or electrical equipment—and knowing which to use is crucial for effective fire safety management.