An AFCI (Arc Fault Circuit Interrupter) is built for protection from fires that are imposed by arcing faults. Talking about arcing fault, This condition only happens when wires/cords are not in good condition, which is often caused when wire insulation is punctured either by hanging pictures or cable staples, cords that are stuck under household items, furniture that is pressed up onto plugs, natural aging of products, and exposure of cord to heat vents & sunlight.    On contrary, a GFCI (Ground Fault Circuit Interrupter) is built to prevent you from getting electric shocks that are intense in nature. A ground fault is an electric path that diverts current flow to the ground usually happens as a result of circuit leaks. If someone’s body gets in touch with it, he or she can be seriously electrocuted.