What is a common misconception about using fire extinguishers?

The notion that fire extinguishers can be used on all types of fires is a common misconception because each type of fire extinguisher is designed to combat specific classes of fires, such as those caused by wood, flammable liquids, electrical equipment, or metals. For example, using water-based extinguishers on grease or electrical fires can lead to rapid flame spread or even electrocution, respectively. Therefore, understanding the classification of fires and matching them with the appropriate extinguisher type is crucial for effective fire suppression. This highlights the importance of training and proper knowledge when it comes to using fire extinguishers safely and effectively.