A fire extinguisher is a crucial tool in fire safety, designed to suppress and control small fires before they escalate. These portable devices come in various types, each tailored to specific fire classes. ABC extinguishers are versatile, suitable for common combustibles, flammable liquids, and electrical fires. CO2 extinguishers are effective for electrical fires, leaving no residue. Water and foam extinguishers work well on Class A and B fires, respectively. Understanding the PASS technique—Pull, Aim, Squeeze, Sweep—is essential for proper operation. Regular inspections and maintenance ensure reliability. Placing extinguishers in easily accessible locations and providing proper training empower individuals to act swiftly in emergencies. Incorporating fire extinguishers into overall fire safety plans enhances preparedness, making them indispensable tools for protecting lives and property in various environments.