A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet and a main body comprising a suction motor. The suction motor provided in the air flow path. The surface cleaning apparatus also includes an air treatment member (preferably a cyclone bin assembly) provided in the air flow path. The air treatment member may be removably mounted to the main body. The air treatment member may include a power switch. A circuit may connect the suction motor to an electrical source. The circuit may be open and closed by operation of the power switch, and the circuit may be interrupted when the air treatment member is removed from the main body.