Because it is a multi-purpose ABC extinguisher, it handles the three fire classes homeowners and small businesses actually run into. Class A is ordinary combustibles such as wood, paper, cardboard, cloth and trash.
Class B is flammable liquids such as gasoline, oil, kerosene, paint and cooking grease. Class C is live electrical equipment including outlets, extension cords, power tools, space heaters and appliances.The agent is a fluidized, siliconized mono ammonium phosphate powder that melts near 350 degrees F to coat and insulate burning material, smothers flammable liquid fires, and will not conduct electricity back to the operator. Each extinguisher discharges for roughly 14 seconds with a 12 to 18 foot range, so you can attack a fire from a safe distance rather than standing over it.
The 5 lb size is a practical middle ground: it holds far more agent than a small aerosol can, yet stays light enough for most adults and older teens to carry and aim one-handed. Construction is all metal, with a corrosion-resistant cylinder, a metal valve assembly, and a color-coded pressure gauge you can read at a glance during a monthly check. Unlike disposable household extinguishers, the B500 is rechargeable. After a discharge, a certified fire equipment technician can refill and re-pressurize it, which makes it a sensible long-term choice for landlords, contractors, offices, workshops, restaurants, food trucks, farms and job sites that need to stay code compliant. It is equally at home in a car, truck, RV, camper, trailer or boat, where a fast response to an engine or fuel fire matters most.Placement tips: keep one on every floor, one in the kitchen near an exit rather than directly above the stove, one in the garage or workshop, and one near any fireplace, wood stove or space heater. Learn PASS before you need it: Pull the pin, Aim at the base of the flames, Squeeze the handle, Sweep side to side. Check the gauge monthly and have the unit professionally inspected once a year. Has manufactured fire extinguishers in Trussville, Alabama since 1971, and the B500 is the model many fire service companies specify.
UL and ULC listed at 2A:10B:C.