6-year-old Blakely Powell, far right, tries to extinguish a simulated fire as Deputy Fire Marshal Ryan Angrick shows her where to angle the extinguisher Thursday at the Greenwood Community Center.

The class of your fire extinguisher determines what fires it works best on, such as combustible, electrical, and oil.

The most consistent violations during inspections relate to fire extinguisher annual service and inspection. Here's what safety professionals need to know.