A surface cleaning apparatus has an air flow path from a dirty air inlet to a clean air outlet. The air flow path comprising an air inlet conduit which extends downstream from the dirty air inlet. The Surface cleaning apparatus has a first stage cyclone and a second stage cyclone downstream from the first stage cyclone, the second stage cyclone having a plurality of air inlets. The cyclone axis of rotation of the first stage cyclone extends through the air outlet of the second stage cyclone. the first stage cyclone, the second stage cyclone having a plurality of air inlets, an air outlet and a cyclone axis of rotation. A plane that is transverse to the axis of rotation of the second stage cyclone extends through the inlet conduit and the air outlet of the second stage cyclone

A cleaning device including a vacuum cleaner having an intake portion suctioning foreign substances and a dust collecting container collecting the foreign substances. The cleaning device also including a dust collecting station connected to the dust collecting container. The dust collecting station having a station body, a seating portion including an opening, a suction device configured to generate a suction airflow so that the foreign substances in the dust collecting container are discharged through the opening, and a collecting portion arranged between the seating portion and the suction device and configured to collect the foreign substances that are caused to flow through the opening of the seating portion from the inside of the dust collecting container by the suction airflow.

A cleaner includes a hollow cylindrical housing; a housing wall dividing an internal space of the housing into a first space and a second space; a wall through-hole defined to pass through the housing wall; a mounting portion including a mounting body having a top face and a mounting space defined therein in communication with the second space, the mounting body being fixed into the wall through-hole; first openings defined in a first region of the bottom face, and second openings defined in a second region of the bottom face; a separator disposed in the first space to form a flow path for guiding air to the plurality of openings, and a filter that includes a filter body located in the mounting space, and filter faces to filter the air flowing through the first openings and second openings.

A vacuum cleaner docking station is disclosed, the vacuum cleaner docking station includes a vacuum cleaner separator and a dock. The vacuum cleaner separator is operable to separate debris from a suction airflow. The vacuum cleaner separator includes a dirty air inlet, a clean air outlet, and a debris collector having a debris outlet. The vacuum cleaner separator is removably coupled to the dock. The dock includes an airflow source operable to generate an airflow. The dock further includes a dock debris collector and an airflow outlet in fluid communication with the airflow source such that the airflow generated by the airflow source is discharged from the airflow source through the airflow outlet. Airflow generated by the airflow source of the dock travels through the vacuum cleaner separator and through the debris outlet of vacuum cleaner to blow debris out of the debris outlet and into the dock debris collector.

A robotic vacuum cleaner has a pneumatic transfer mechanism that is used to transfer dirt from the robotic vacuum cleaner to a docking station.

A cleaner includes: a suction unit; a suction motor that generates suction force for sucking air through the suction unit and includes an impeller; a dust separation unit that includes one or more cyclone units generating cyclonic flow to separate dust from air flowing inside through the suction unit; a dust container that stores dust separated by the dust separation unit and is disposed under the suction motor; a battery disposed behind the dust container to supply power to the suction motor; and a handle disposed behind the suction motor, wherein a rotational axis of the impeller and an axis of the cyclonic flow vertically extend and an extension line from the rotational axis of the impeller passes through the one or more cyclone units.

A cleaning apparatus including a vacuum cleaner and a docking station is provided. The cleaning apparatus includes a vacuum cleaner including a dust collecting chamber in which foreign substances are collected, and a docking station configured to be connected to the dust collecting chamber to remove the foreign substances collected in the dust collecting chamber. The dust collecting chamber is configured to collect foreign substances through centrifugation, and configured to be docked to the docking station, and the docking station includes a suction device configured to suction the foreign substances and air in the dust collecting chamber docked to the docking station.

A cleaner system includes a cleaner and a cleaner station that performs a method for removing residual dust. The cleaner station is configured to suction dust stored in the cleaner. Residual dust in the cleaner station after suctioning dust in a dust bin of the cleaner is suctioned through a bypass hole that penetrates an outside and an inside of a suction tube.

A cleaner system includes a cleaner and a cleaner station that performs a method for removing residual dust. The cleaner station is configured to suction dust stored in the cleaner. Residual dust in the cleaner station after suctioning dust in a dust bin of the cleaner is suctioned through a bypass hole that penetrates an outside and an inside of a suction tube.

A surface cleaning apparatus includes a cyclone having a plurality of tangential air inlets. Each tangential air inlet is formed of a sidewall and an end wall. The tangential air inlet has an inlet port which is positioned to face a wall of the cyclone chamber. The tangential air inlets have a flow straightener provided on a radial inner or outer side.