What is the discharge range of an AFFF extinguisher?

The discharge range of an Aqueous Film Forming Foam (AFFF) extinguisher is typically around 35 to 40 feet. This range is significant as it allows the user to maintain a safe distance from the fire while effectively delivering the foam to suppress it. The AFFF works by creating a barrier between the fuel and the air, preventing re-ignition and cooling the area. Understanding this range is critical for fire safety personnel, as it enables them to effectively combat flammable liquid fires without exposing themselves to undue risk. Additionally, the optimal range helps ensure that the foam can effectively cover the burning surface, enhancing the extinguisher's effectiveness.