Abstract: A hand carriable surface cleaning apparatus, such as a cyclonic hand vacuum cleaner, is provided wherein air travels in a first direction from the cyclone chamber to an upstream side of the pre-motor filter, and air travels in an opposite direction to the first direction in a portion of an air flow path extending from the pre-motor filter to the suction motor.

Abstract: A surface cleaning apparatus comprises a uniflow cyclone chamber comprising an air inlet in a first end, a dirt outlet in a second end and an air outlet that is configured so that air exits the cyclone chamber through the second end.

Abstract: A surface cleaning apparatus comprises a first flexible electrified air flow conduit having an air inlet end that is electrified.

Abstract: A surface cleaning apparatus comprises cyclone downstream from the dirty air inlet and an openable pre-motor filter chamber. The pre-motor filter chamber is openable with the cyclone chamber and/or the dirt collection chamber associated with the cyclone chamber.

Abstract: A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. A separated material collection chamber surrounds at least a portion of the cyclone chamber and is communication therewith via a separated material outlet. The separated material collection chamber is spaced at least about 0.5 inches from the cyclone chamber. In addition, the separated material collection chamber is spaced from the bottom of the cyclone by at least about 0.5 inches.

Abstract: A turbo brush for cleaning a surface comprises a housing having an upper surface, a lower surface, a front end and a rear end, the lower end having a dirty air inlet. A primary air flow path extends from the dirty air inlet to a dirty air outlet. A rotary brush is associated with the dirty air inlet and extends transverse to a forward direction of movement of the turbo brush. A drive mechanism comprises an air driven turbine, a drive gear drivingly connected to the rotary brush and a worm gear directly drivingly connecting the air driven turbine and the drive gear.

Abstract: A canister style surface cleaning apparatus comprises a wheeled based having a front end and a cleaning mount, the cleaning mount adapted to receive a surface cleaning attachment that comprises a first flexible hose; a portable cleaning unit removably mounted on the wheeled base and comprising a suction motor and at least one cyclonic separation stage having an associated material collection chamber which is sealed when the portable cleaning unit is removed from the wheeled base; and, a fluid flow path extending from the cleaning mount to a clean air exit of the surface cleaning apparatus.