A hand vacuum cleaner wherein the suction motor axis of rotation is generally parallel to the central longitudinal axis and when the hand vacuum cleaner is oriented with the upper end above the lower end, the suction motor axis of rotation is positioned above the central longitudinal axis.

A hand vacuum cleaner can include an air inlet conduit having an inlet conduit axis, a suction motor and fan assembly having a suction motor axis of rotation, and a cyclone unit comprising a cyclone chamber having a cyclone axis of rotation. The inlet conduit axis can be generally parallel to the cyclone axis and when the inlet conduit axis is horizontally disposed, the inlet conduit axis is positioned above the cyclone axis and a projection of the inlet conduit axis intersects the suction motor.

A hand vacuum cleaner can include an air inlet conduit having an inlet conduit axis, a suction motor and fan assembly having a suction motor axis of rotation, and an air treatment member. The handle has a hand grip portion that extends upwardly and forwardly and the suction motor is positioned forward of the hand grip portion.

A hand vacuum cleaner has an air treatment member, a pre-motor filter housing having an openable door and a pre-motor filter media is provided in the pre-motor housing. The openable door is openable while the air treatment member is provided on the hand vacuum cleaner.

A hand vacuum cleaner has a pre-motor filter comprising a longitudinally extending filter media having an open interior, an outer upstream wall, an inner downstream wall and a filter longitudinal axis wherein the longitudinal axis extends upwardly in a direction from the lower end to the upper end.

A hand vacuum cleaner has a suction motor and fan assembly having a suction motor axis of rotation, an air treatment member having an openable door and a central longitudinal axis extending between the front and rear ends of the air treatment member; and, a handle having a having a hand grip portion wherein the hand grip portion extends upwardly and forwardly when the hand vacuum cleaner is oriented with the upper end of the hand vacuum cleaner above the lower end of the hand vacuum cleaner. The central longitudinal axis intersects the openable door and the hand grip portion.

A hand vacuum cleaner has a main body having an upper end having a dirty air inlet conduit and a handle. The handle has a hand grip portion that extends upwardly and forwardly. An assembly comprising an air treatment member and a pre-motor filter media is removably mounted to the main body.

A hand vacuum cleaner wherein the central longitudinal axis of the air treatment member extends generally horizontally and the suction motor axis of rotation extends generally vertically.

A surface cleaning apparatus has a main body having a main body actuator operable between an open position and a closed position. An assembly removably mounted to the main body has an air treatment member having an openable door and an assembly door lock, the assembly door lock comprising an actuation portion operable between an open position and a closed position and lock portion operable between an engaged position in which the door is secured in a closed position and a disengaged position in which the door is openable. When the assembly is mounted to the main body, the main body actuator is operatively connected to the actuation portion of the assembly door lock whereby when the main body actuator is moved from the closed position to the open position, the actuation portion is moved.

A hand vacuum cleaner with a vertically extending flat filter is provided. A hand vacuum cleaner with a suction motor forward of the pre-motor filer is also provided.