A hand vacuum cleaner has a dual first stage cyclones.

A self-cleaning dust cylinder assembly, including a dust collection assembly, a filter and a cleaning assembly. The dust collection assembly includes a dust collection cylinder, the upper end of the dust collection cylinder is provided with an opening, and the lower end of the dust collection cylinder is provided with a dust suction port. The filter inlet side of the filter is located above the dust suction port, and the filter outlet side is connected to the opening of the dust collection cylinder. The cleaning assembly includes a cleaning brush, and the cleaning brush is installed in the dust collection cylinder and cleans the filter with the movement of the dust collection cylinder, so as to clean the dust stains and other garbage attached on the filter into the dust collection cylinder.

A cleaning device is provided. The cleaning device includes a vacuum cleaner which includes a dust collecting bin and a docking station to which the vacuum cleaner is coupled, wherein the docking station includes a charger configured to be electrically connected to a charging terminal of the vacuum cleaner in response to the vacuum cleaner being coupled to the docking station, a door driver configured to open or close a dust collecting bin door disposed at a lower portion of the dust collecting bin, a suction device configured to move air from the dust collecting bin into the docking station, a collector configured to collect foreign matter that moves together with the air due to driving the suction device, and a controller configured to control the door driver to open the dust collecting bin door in response to the charging terminal of the vacuum cleaner being electrically connected to the charger, configured to control the suction device to supply a suctioning air flow to the dust collecting bin and perform a discharge operation in response to the dust collecting bin door being opened, and configured to control the door driver to close the dust collecting bin door in response to an end of the discharge operation.

A cleaning device is provided. The cleaning device includes a vacuum cleaner which includes a dust collecting bin and a docking station to which the vacuum cleaner is coupled, wherein the docking station includes a charger configured to be electrically connected to a charging terminal of the vacuum cleaner in response to the vacuum cleaner being coupled to the docking station, a door driver configured to open or close a dust collecting bin door disposed at a lower portion of the dust collecting bin, a suction device configured to move air from the dust collecting bin into the docking station, a collector configured to collect foreign matter that moves together with the air due to driving the suction device, and a controller configured to control the door driver to open the dust collecting bin door in response to the charging terminal of the vacuum cleaner being electrically connected to the charger, configured to control the suction device to supply a suctioning air flow to the dust collecting bin and perform a discharge operation in response to the dust collecting bin door being opened, and configured to control the door driver to close the dust collecting bin door in response to an end of the discharge operation.

An environmental control unit comprises a housing, a vacuum cleaner, a filtration unit, and a blower. The vacuum cleaner is positioned in the housing and is configured to receive a tool contaminant stream produced by at least one tool. The vacuum cleaner filters particulate matter from the tool contaminant stream, thereby producing a filtered air stream. The filtration unit is also positioned within the housing and comprises at least one filter. The blower is positioned within the housing downstream of the filtration unit. The blower is configured to create negative air pressure within the second compartment to draw an area contaminant stream from an exterior of the environmental control unit into the housing. A second blower may also be present. The blower draws the filtered air stream and the area contaminant stream through the at least one filter in the filtration unit to produce a filtered mixture stream.

A hand vacuum cleaner has an information display device provided on a rear wall of the rear end of the hand vacuum cleaner.

A cleaner is disclosed. The cleaner includes: a housing having an introduction opening through which air is introduced; a filtering unit configured to be mounted in an inner space of the housing, and defining a dust collection space between the filtering unit and an inner surface of the housing; and a cleaning unit surrounding the filtering unit and configured to be raised and lowered. When the cleaning unit is in an initial position at least a portion of the cleaning unit is connected to an air introduction path extending from the introduction opening such that the cleaning unit guides a flow of introduced air. A guide edge extends from a lower portion of the cleaning unit toward a bottom of the dust collection space, and a surface of the guide edge facing the inner surface of the housing is inclined.

A hand vacuum cleaner has a cyclone provided in the air flow path and a dirt collection chamber external to the cyclone. The cyclone air inlet and the cyclone air outlet are located at the cyclone chamber rear end and the dirt outlet is located at the cyclone chamber front end. When the upper end of the hand vacuum cleaner is positioned above the lower end of the hand vacuum cleaner, the central longitudinally extending axis of the cyclone is oriented generally horizontally, the cyclone air inlet is located at a lower end of the cyclone and the dirt outlet is located at an upper end of the cyclone.

A dual cyclonic stage hand vacuum cleaner has a handle provided on a side of the hand vacuum cleaner.

A dust collector comprises: a first container, a vacuum motor, a first-flow guiding unit, and a second flow-guiding unit; wherein the first container is set with a first tube-body, and the vacuum motor is set on a cover-body; wherein the motor is set with a filter, wherein the first flow-guiding unit and the second flow-guiding unit are respectively detachably combined with a second container and a third container; wherein the second flow-guiding unit is located in the first flow-guiding unit, and the first tube-body sucks in air, so that the dust and debris in the air enter the first container; wherein the air sequentially passes through the first flow-guiding unit and the second flow-guiding unit to form a vortex to make the fine dust fell into the second container and the third container; and the air is finally discharged by the vacuum motor after passes through the filter.