What common mistake do people make when using a fire extinguisher?

Using a fire extinguisher on the wrong type of fire is a critical mistake that can lead to disastrous consequences. Fire extinguishers are specifically designed to combat certain classes of fires, classified based on the materials burning—such as wood, flammable liquids, electrical sources, and more. If an extinguisher is used against an inappropriate fuel type, it may not effectively put out the fire and could even exacerbate the situation. For instance, using a water-based extinguisher on an electrical fire can cause electrical shock or spread the flames, while using a foam extinguisher on a grease fire may not adequately suppress the flames.

Understanding the classes of fire and the corresponding extinguishing agents is fundamental to using a fire extinguisher safely and effectively. This knowledge ensures that individuals act appropriately in emergency situations and helps prevent personal injury, property damage, and the escalation of fire incidents. Therefore, proper training in identifying fire types and the suitable extinguishing method is vital for anyone who may need to operate a fire extinguisher.