Make sure to read and understand the instructions on your fire extinguisher(s) before you need it.
Know the different classes of fire extinguishers and what you need.
Class-A extinguisher(s) are made to fight blazes in wood, paper, rubber, and most plastics. Install one near fireplaces and in the living areas and bedrooms.
Class-B extinguishers contain dry chemicals that smother fires fueled by oil, solvents, grease, gasoline, kerosene, and other flammable liquids. Install them in kitchens, workshops, and garages.
Class-C extinguisher(s) also contain a dry chemical to smother fires in electrical equipment. Best use in workshop areas and around the electrical service panel.