A dust collector can be used with a hand-held power tool. The dust collector includes a housing, a telescoping suction pipe coupled to the housing, and a suction fan positioned within the housing and operable to generate a vacuum in the suction pipe. The suction pipe is configured to telescope toward and away from the housing. The suction pipe includes an outer pipe supported by the housing, and an inner pipe slidably received into the outer pipe.

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 surface cleaning apparatus having an air flow path; a suction motor positioned in the air flow path; an air treatment chamber provided in the air flow path; and a porous filter provided in the air treatment chamber and including an outlet passage from the air treatment chamber. An air impermeable impact wall in the air treatment chamber is opposed to an inlet into the air treatment chamber. At least a portion of the impact wall or a deflecting portion of a wall defining part of the front end of the air treatment chamber imparts a circular flow to air entering the air treatment chamber.

A robot cleaner comprising: a cleaner body including a wheel unit and a controller controlling driving of the wheel unit; a dust container accommodation part having a shape recessed toward the front from the rear thereof to be opened to the rear; a dust container detachably coupled to the dust container accommodation part, the dust container have a portion protruding rearward of a rear end of the cleaner body in a state in which the dust container is accommodated in the dust container accommodation part; and a dust container cover rotatably coupled to the cleaner body to cover the dust container, wherein the dust container cover is accommodated in the dust container accommodation part in a state in which the dust container cover is disposed to cover the dust container, and a portion of the dust container cover protrudes rearward of the rear end of the cleaner body.

A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to be respectively guided to lower and upper portions thereof.

A robot cleaner comprising: a cleaner body; a suction unit sucking air containing dust to be introduced into the cleaner body; and a dust container detachably coupled to the cleaner body, the dust container collecting dust filtered from the air introduced into the cleaner body, wherein the dust container includes: an external case including at least one cyclone filtering dust in air introduced into the dust container; an upper case coupled to an upper portion of the external case, the upper case including an upper opening corresponding to a space into which air passing through the cyclone is discharged; an upper cover detachably coupled to the upper case to open/close the upper opening; and a filter mounted on a rear surface of the upper cover, the filter covering the discharged space of the air passing through the cyclone when the upper cover is coupled to the upper case, to filter dust in the air passing through the cyclone.

A surface cleaning apparatus is provided wherein at least one of an upstream air plenum that is positioned upstream of the pre-motor filter, and a downstream air plenum that is positioned downstream of the pre-motor filter comprises an end wall spaced from the pre-motor filter and comprises a first portion having an air flow port and a second portion proximate the outer perimeter of the pre-motor filter, wherein the first portion and the second portion meet at a first juncture that extends at an angle to the first portion and the second portion.

A surface cleaning apparatus such as an extractor has a fluid flow path extending from a dirty fluid inlet head to a clean air outlet. The fluid flow path upstream of the separation stage comprises a removable portion.

The vacuum duster attachment is a suction-based cleaning device. The vacuum duster attachment is a rotating device. The vacuum duster attachment forms a brush. The vacuum duster attachment simultaneously: a) dislodges particles from a surface; and, b) vacuums the dislodged particles into a dirt chamber for storage. The vacuum duster attachment comprises a vacuum structure, a brush structure, and a vacuum circuit. The brush structure attaches to the vacuum structure. The vacuum circuit installs in the vacuum structure. The vacuum circuit is a control circuit that controls the operation of the vacuum duster attachment.

A vacuum cleaner includes a motor housing, a motor and fan assembly in communication with the motor housing, a housing forming a receptacle in fluid communication with the motor housing, and a filter assembly removably insertable into the receptacle. The filter assembly includes a filter supporting a filter. The filter assembly further includes a seal and a lock member movable relative to the tray between a locked position and an unlocked position. Movement of the lock member to the locked position engages the seal with the housing when the filter assembly is inserted in the receptacle.