A hand vacuum cleaner comprises a body which houses a suction motor. An end of a handle is provided on a sidewall of the body and extends outwardly therefrom. An air treatment member comprises a chamber, which has an openable door and which forms a front face of the hand vacuum cleaner. An openable door lock comprises an axially extending member having a front end and a rear end and, when the door is in a closed portion, the front end secures the openable door in the closed position and the door release actuator is rotationally mounted and, in use, the door release actuator is rotated to drive the axially extending member whereby the door is unlocked.