A movable device includes: at least one lift generating unit for generating a pressure difference between opposite sides thereof to generate a lift force; a movable device body connected to the lift generating unit to be movable by means of the lift force generated by the lift generating unit; and at least one supply duct, the number of which corresponds to the number of the lift generating unit, wherein on end of the supply duct is disposed on one side of the lift generating unit and, when the lift generating unit operates, fluid is suctioned through the other end of the supply duct to be supplied into the lift generating unit.

An evacuation station for a mobile floor cleaning robot comprises a housing and an air treatment assembly removably mountable to the housing. The air treatment assembly is provided on a first lateral housing end. The first lateral housing end is provided with a housing air inlet that is downstream of the air treatment assembly air outlet whereby the air treatment assembly air outlet faces the housing air inlet.

A replacement head for a vacuum device includes a plastic tray, a filter and a pad. The plastic tray includes a dust chamber and opening allows air, dust and debris to be drawn into the dust chamber during use. The pad is attached to the lower side of the plastic tray and is in contact with the floor during cleaning. The filter is connected to the plastic tray such that the filter substantially covers a top opening in the dust chamber. The filter is preferably made of a non-woven material with a basis weight between about 20 and 70 gsm, and has a thickness less than about 1.0 mm.

A surface cleaning apparatus comprises an air treatment chamber with a moveable member positioned therein. An end wall of the air treatment chamber is openable in response to a moveable member being longitudinally translated through at least the portion of the air treatment chamber. The driving assembly includes a handle and a drive rod that is rotatably mounted about a longitudinally extending axis of the drive rod between a stored position in which the moveable member is in a stored position and an operable position in which the moveable member is translatable through at least a portion of the chamber. In the stored position, the handle is longitudinally spaced from the first and second ends of the air treatment chamber and, when the driving assembly is in the operable position, the driving assembly is operable to longitudinally translate the moveable member through at least a portion of the chamber.

A vacuum cleaner having a cyclone and dual inlet passages, each inlet passage extending to a tangential air inlet of the cyclone.

A suction apparatus is provided including a suction unit for creating a suction flow, at least one filter and a filter cleaning device, wherein the filter cleaning device includes at least one valve having a closing body and a counter device, and wherein in an open position of the valve the filter has a filter cleaning flow applied thereto and wherein in a closed position of the valve the filter cleaning flow is or becomes inactive, wherein the closing body has a first contact region and a second contact region, wherein, in the closed position of the valve, both the first contact region and the second contact region are in contact against the counter device, and wherein in the open position of the valve, a flushing air flow flows past both the first contact region and the second contact region to the filter.

A surface cleaning apparatus such as an extractor has a liquid delivery system, a separator, a collection chamber in communication a the separated element outlet of the separator, and a separated liquid collection container downstream from the collection chamber.

An autonomous vacuum cleaner operable to navigate about a surrounding environment to perform a surface cleaning operation without continuous human input. The vacuum cleaner includes a suction nozzle and a suction motor and a fan assembly operable to generate an airflow through the vacuum cleaner from the suction nozzle through a debris separator to a clean air exhaust. The suction motor and the fan assembly having an axis of rotation and a fan of the fan assembly rotatable about the axis of rotation. The axis of rotation is orientated horizontally. The debris separator includes a cyclonic separator operable to separate debris from the airflow and the cyclonic separator includes a cylindrical wall along a longitudinal axis, the longitudinal axis of the cyclonic separator being orientated horizontally.

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A driving assembly is drivingly connected to the moveable member wherein the driving assembly is operable between a stored position is which the surface cleaning apparatus is operable to clean a surface and a cleaned position in which the moveable member has been translated through at least a portion of the chamber, wherein, in the stored position, a portion of the driving assembly is longitudinally spaced from the first and second axially spaced apart ends of the air treatment chamber.

A surface cleaning apparatus comprising a surface cleaning head, a rigid air flow conduit and a hand vacuum cleaner removably mountable to an outlet end of the rigid wand. The hand vacuum cleaner comprises a main body, a cyclone provided at the front end of the hand vacuum cleaner, an inlet passage positioned at an upper end of the cyclone and a hand vacuum cleaner electrical connector provided on the front end of the hand vacuum cleaner adjacent the inlet passage. The hand vacuum cleaner electrical connector is releasably connectable with the outlet end electrical connector of the rigid wand. When the hand vacuum cleaner is mounted to the outlet end of the rigid wand, the longitudinally extending passage axis extends in a same direction as the cyclone axis of rotation and the suction motor axis of rotation extends in the same direction as the cyclone axis of rotation.