Abstract: A surface cleaning apparatus is provided. The surface cleaning apparatus includes a dirt inlet, a rotatable brushing member, and a brush motor drivingly connected to the rotatable brushing member. The brush motor includes a plurality of field coils, a first motor sub-unit, a second motor sub-unit, and a motor controller. The first motor sub-unit includes a first rotor portion, a first stator portion, and a first field coil. The second motor sub-unit includes a second rotor portion, a second stator portion, and a second field coil. The first and second rotor portions are rotatable about a motor axis and are drivingly connected to the brushing member. The second motor sub-unit is axially spaced along the motor axis from the first motor sub-unit. The motor controller is operable to direct electric current through the plurality of field coils generating magnetic fields and driving rotation of the rotor portions.

Abstract: An upright surface cleaning apparatus comprises a floor cleaning head and an upright section moveably mounted to the surface cleaning head. The upright section has a filtration member housing and a suction motor housing. The filtration member housing has a filtration member, an air inlet, an air outlet, an openable top wall and an openable bottom wall and the suction motor housing has a suction motor and an open top. A pre-motor filter is removably receivable in the open top of the suction motor housing. The filtration member housing is removably positionable on the suction motor housing and the filtration member housing seals the open top of the suction motor housing when the filtration member housing is positioned on the suction motor housing whereby the pre-motor filter is revealed when the filtration member hosing is removed. When the filtration member housing is positioned on the suction motor housing, the air outlet of the filtration member housing faces an upstream surface of the pre-motor filter.

Abstract: A filter mask for biological material is provided wherein the filter mask has a fan assist for inhalation.

Abstract: A surface cleaning apparatus has a cyclone and a dirt collection chamber wherein the dirt collection chamber has a dirt collection chamber portion which is located axially spaced from the cyclone chamber and the dirt collection chamber portion has a transverse section in a plane transverse to the longitudinal axis of the cyclone that is annular.

Abstract: An upright surface cleaning apparatus is has a portable surface cleaning unit removably mounted to an upper portion that is pivotally mounted to a surface cleaning head. The surface cleaning apparatus is operable in a floor cleaning mode in which the portable surface cleaning unit is mounted to the upper portion and the above floor cleaning wand is inserted in an open upper end of the upper portion. The surface cleaning apparatus is also operable in an above floor cleaning mode in which the portable surface cleaning unit is mounted to the upper portion and the above floor cleaning wand is removed from the open upper end of the upper portion. When the surface cleaning apparatus is in the floor cleaning mode, the first mounting members of the portable surface cleaning unit engage the wand mounting members.

Abstract: A hand vacuum cleaner has a body portion housing a suction motor. An air treatment member assembly comprises an air treatment member assembly body, a rear door and an air treatment member. The air treatment member has a front end, a rear end, an air inlet and an air outlet provided at the rear end of the air treatment member. The air treatment member assembly is moveable to an emptying position. The rear door is moveable between a closed position and an open position, and the rear door houses a pre-motor filter that is external to the air treatment member.

Abstract: A hand vacuum cleaner has an air flow path extending from a dirty air inlet provided at a front end of the hand vacuum cleaner to a clean air outlet, a main body housing a suction motor, and an air treatment member that is moveably mounted to the main body between an operating position and an emptying position. The hand vacuum cleaner also includes a post-motor filter housing, wherein a post-motor-filter is removably receivable in the post-motor filter housing, and wherein moving the air treatment member to the emptying position enables access to the post-motor-filter.

Abstract: A surface cleaning apparatus has a surface cleaning head and an upper portion moveably mounted to the surface cleaning head between a storage position and a floor cleaning position, the upper portion has upper portion laterally extending members. An above floor cleaning wand is removably receivable in air flow communication with the upper portion. The wand has wand laterally extending members, wherein, when the wand is received in air flow communication with the upper portion and the upper portion is in the storage position, the wand has a lower end and an upper end spaced from the lower end along a wand axis and the wand laterally extending members are positioned above the upper portion laterally extending members.

Abstract: A hand vacuum includes a nozzle portion at a front end of the hand vacuum having a dirty air inlet. An air flow passage extends from the dirty air inlet to a clean air outlet in a main body rearward of the nozzle portion. The main body houses a suction motor in the air flow passage. First and second laterally spaced apart opposed arm members extend generally axially between the nozzle portion and the main body, and a volume is positioned between the nozzle portion, the main body and the opposed arm members. An air treatment member assembly comprising an air treatment member is removably positionable in the volume. At least one of a nozzle portion air outlet, an air treatment member assembly air inlet, an air treatment member assembly air outlet and a main body air inlet is axially retractable.

Abstract: A docking station for a robotic surface cleaning apparatus has a momentum separator. The momentum separator has a plurality of walls comprising an upper wall, a lower wall and a first sidewall, wherein the first sidewall extends between the upper and lower walls, and wherein the first sidewall comprises a side screen. A first end wall is spaced from and faces the side screen wherein an up flow chamber is positioned between the first end wall and the side screen.

Abstract: A hand vacuum cleaner has an air treatment chamber, which comprises a stationary portion and an openable portion. The openable portion is moveably mounted by a mount between a closed position in which the air treatment chamber is closed and an open position in which the air treatment chamber is open. The Air treatment chamber has an air outlet comprising a screen and the screen is moveable with the openable portion.

Abstract: A system comprising a vacuum cleaner and an apparatus for receiving dirt from a dirt collection region of the vacuum cleaner. The apparatus has an air flow passage from an inlet port to a clean air outlet, wherein the dirt collection region of the vacuum cleaner is positionable in air flow communication with the inlet port. In an emptying mode of operation, a motor and fan assembly of the system produces a flow of air that conveys dirt from the dirt collection region of the vacuum cleaner to the air treatment member of the apparatus. The vacuum cleaner is docked with the apparatus by a user moving the dirt collection region in a downward direction to a position in which, during the emptying mode of operation, the flow of air conveys the dirt from the dirt collection region of the vacuum cleaner downwardly to the air treatment member of the apparatus.

Abstract: A hand vacuum cleaner has a cyclonic stage comprising an openable front wall provided at the front end of the cyclonic stage. A pre-motor filter is positioned in the air flow passage downstream from the cyclone air outlet and rearward of the cyclone sidewall. The pre-motor filter has a diameter in a direction transverse to the cyclone axis that is larger than a diameter of the cyclone air outlet in the direction transverse to the cyclone axis. The pre-motor filter has an outer perimeter defining a volume and the cyclone axis and the motor axis each extend through a centre of the volume. The cyclone axis is generally parallel to the motor axis. When the openable front wall is opened, the front end of the cyclone stage is opened and has an opening, the opening has a diameter in the direction transverse to the cyclone axis, and the rear end of the cyclonic stage has a diameter that is generally equal to the diameter of the opening.

Abstract: A surface cleaning apparatus comprising a cyclone positioned in an air flow path. The cyclone has a cyclone chamber with a thin walled porous outlet member.

Abstract: A filter mask for biological material is provided wherein the inlet port faces downwardly.

Abstract: A surface cleaning apparatus has a rotatably mounted brush. The brush has a leading row of bristles, a trailing row of bristles and a hair blocking member between the trailing row of bristles and the leading row of bristles.

Abstract: A surface cleaning apparatus has a surface cleaning head, a support pivotally mounted to the surface cleaning head and a surface cleaning unit vertically removably mounted to an upper end of the support. The support consists of an upflow duct. The surface cleaning unit comprises a cyclone chamber having an external dirt collection chamber, a pre-motor filter, a suction motor and a flexible hose.

Abstract: A surface cleaning apparatus comprises an air treatment chamber having a first end comprising a first end wall, an axially spaced apart second end comprising a second end wall, a sidewall extending between the first and second end walls, an air treatment chamber air inlet and an air treatment chamber air outlet provided at the second end. A dirt collection region, which is contiguous with the air treatment chamber, is positioned axially from the first and second end walls and is closer to the second end wall than the first end wall.

Abstract: A surface cleaning apparatus includes first and second pre-motor filters that are in parallel.

Abstract: A filter assembly has a first housing having a plurality of recesses provided therein and a second housing having a plurality of ribs provided on an inner surface thereof. When the first and second housings are in an engaged configuration, the ribs are receivable in the recesses of the first housing thereby securing a filter media in the filter assembly.