A dust collector includes a filter frame, a cartridge filter, an end cap, and a cover. The filter frame is provided with a center column. The end cap is provided with a bottom plate, a plurality of sliding slots, a plurality of first side walls, a plurality of baffles extending from the first side walls, and a plurality of clamping members. The cover is provided with a plurality of protruding members and a plurality of extending members. The filter frame includes an accommodating space. The bottom plate is provided with a plurality of through openings that run through the bottom plate. The through openings are disposed opposite to the baffles and are configured to communicate between the sliding slots and the accommodating space. The extending members extend into the through openings. The first side walls are connected between the bottom plate and the baffles.

A robot cleaner capable of extending the service life of a filter by including a cyclone unit is provided. The robot cleaner includes a main body including wheels configured to rotate about a rotation axis, a brush device provided in the main body to draw in air containing dust, a first chamber, through which the air drawn in through the brush device is introduced, configured to change a traveling direction of the introduced air, and a second chamber connected to the first chamber and including a dust separator separating dust contained in air, and arranged side by side with the first chamber in a direction in which the rotation axis extends.

A cleaner includes: a main body that has an opening; a suction motor that is disposed in the main body and generates suction force; and a filter unit that includes an exhaust filter for filtering air discharged from the suction motor, the filter unit being inserted into the main body through the opening and being separated from the main body, wherein when the filter unit is combined with the main body, a portion of the filter unit protrudes out of the main body, and a portion of the exhaust filter is positioned inside the main body and the other portion of the exhaust filter is positioned outside the main body.

A surface cleaning apparatus comprises a brushroll that rotates about an axis. The brushroll defines a cylindrical portion and the axis extends centrally through the cylindrical portion. The brushroll also includes a rib that extends in a direction away from the axis. The rib includes a face extending along a line that is collinear with a secant through the cylindrical portion. A brush member extends from the face.

A system for environmental maintenance includes a vacuum unit, an air purifier unit, a controller communicatively connected to the vacuum unit and the air purifier unit, a sweep sensor communicatively connected to the controller, and a movement sensor communicatively connected to the controller. The sweep sensor detects debris and sweeper swept into a detectable vicinity of the sweep sensor and the controller turns on the vacuum unit upon detection by the sweep sensor. The controller turns on the air purifier unit upon the vacuum unit being turned on, and the air purifier unit cycles on for a period as programmed in the controller. The movement sensor detects movement in detectable vicinity of the movement sensor and the controller turns on the air purifier unit upon detection by the sweep sensor, if the air purifier is not already turned on.

A garbage can has an inlet port that is closable about a dirt collection region of a vacuum cleaner such that the inlet port is substantially sealed around the dirt collection region. The garbage can also has a suction motor to draw dirt out of the dirt collection region.

A dust removal device includes a suction head and at least one filter element. The at least one filter element is disposed obliquely within the dust removal device such that floating mounting of the suction head is maintained by automatic, vacuum-induced suction on the at least one filter element. A method for changing a filter element in a dust removal device includes replacing a filter element from above.

A vacuum cleaner includes a suctioning unit, a main body including a cyclone unit for separating dust from the air suctioned through the suctioning unit, a body forming a dust container for storing the dust separated by the cyclone unit, and a body cover for opening and closing the lower side of the body. A filter unit is arranged in the body for filtering air. An actuating unit is configured to move in the body along a space between the outside of the filter unit and the inner circumferential surface of the body.

The disclosure relates to a handheld vacuum cleaner, comprising: a handle body having a first coupling part formed on one side in the longitudinal direction; a drive part body having a second coupling part formed on one side thereof so as to be detachably coupled to the first coupling part, a third coupling part formed on the other side, and a motor provided therein; and a filtration and discharge body having a first hollow part and a second hollow part, respectively formed at one side and the other side so as to communicate with each other, a dust receiving part formed between the first hollow part and the second hollow part so as to communicate with the first hollow part and the second hollow part, and a fourth coupling part formed on the inner surface of the first hollow part so as to be detachably coupled to the third coupling part. Therefore, each component can be completely disassembled and thus the volume can be greatly reduced, resulting in convenience in carrying or storage in a bag or the like, only the damaged components can be easily replaced at the time of partial component damage, thus reducing maintenance costs, and components of different capacity or shape can be replaced and used in combination depending on the purpose of use.

Method for operating a dirt collecting device for a sweeping vehicle or for a vacuum cleaner nozzle of a floor or upright vacuum cleaner, which each comprise a suction fan with controllable speed and/or power, wherein in a first method step, the suction power of the suction fan is set at such a low level that the suction pressure in the dirt collecting device or the vacuum cleaner nozzle is merely sufficient to convey and deposit the absorbed coarse dirt into the intermediate container, and to convey the absorbed fine dirt into a downstream collection container, (normal operation); and that in a second method step, the filling level in the intermediate container is detected with respect to the coarse dirt deposited therein; and that in a third method step, if the filling level in the intermediate container is exceeded, the suction power of the suction fan is increased such that the coarse dirt, which is temporarily deposited in the intermediate container, becomes dispersible and is conveyed into the downstream collection container (emptying mode).