Fire extinguishers come in various types tailored to combat specific classes of fires, including ordinary combustibles (Class A), flammable liquids (Class B), electrical equipment (Class C), combustible metals (Class D), and cooking oils/fats (Class K). To use a fire extinguisher effectively, remember the PASS method: Pull the pin, Aim low, Squeeze the lever, and Sweep from side to side. However, fire safety goes beyond extinguisher use, encompassing preventive measures like installing smoke alarms, practicing fire escape plans, and keeping flammable materials away from heat sources. Regular inspection and maintenance of extinguishers are also crucial components of fire safety protocols, ensuring readiness in the event of a fire emergency.