Using a home fire extinguisher takes knowledge and practice. Before you buy, be certain you know your needs. Are you looking for one for your kitchen? Perhaps you'd like to keep one in your garage. Either way, there are several types of extinguishers, and you should buy a type best for you.
An extinguisher is classified according to the type of burning material it will extinguish. Using the class of extinguisher that is not designed for the material that is burning can actually spread a fire, or worse, cause you to get hurt.