A replacement head for a vacuum device includes a plastic tray, a filter and a pad. The plastic tray includes a dust chamber, a first connector lip and a second connector lip. An opening is provided that allows air, dust and debris to be drawn into the dust chamber during use. The connector lips are provided for attachment to a vacuum device. 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.

A central vacuum wherein said central vacuum comprises a housing with a portion of said housing comprising a motor housing, a filter housing and a dust collecting bin. A motor, power source, foam filter a dust collecting bin are incorporated within the filer housing.

The housing further compromising an exhaust outlet, and at least two optional intake ports adapted to receive an intake hose. The first intake port is adapted such that the air and debris received from an intake hose is channeled into the filter where it passes through the filter, trapping dust and debris in the filter. The second intake port is adapted such that the air and debris received from an intake hose is channeled directly into a bag adapter and the air and debris is channeled into a vacuum filter bag, trapping the dust and debris in the bag. With either intake port, the air to flows through the filter or filter bag into the housing, where the air is exhausted through the exhaust outlet.

The intake ports further comprise a seal, such that when an intake port is not in use it can be sealed and prevent the escape of any airflow, dust and debris through the intake port.

A robot cleaner is provided that may include a suction motor installed within a main body to generate a suction force, at least two conductive plates spaced apart from each other to form a flow path for external air introduced by the suction force, and a calculator to measure a capacitance value between the at least two conductive plates. Further, provided is a robot cleaner that may include a suction motor installed within a main body to generate a suction force, a porous structure having at least one through hole, through which external air introduced by the suction force may flow, at least one filter disposed on a surface of the porous structure to filter dust contained in the air, and a power supply configured to apply alternating current (AC) power to at least a portion of the surface of the porous structure.

A surface cleaning apparatus comprises an air treatment member having a first end, a longitudinally spaced apart second end, an air inlet and an air outlet comprising an outlet conduit; an air flow path extending from a dirty air inlet to a clean air outlet and including a suction motor and the air treatment member; a pre-motor filter positioned in the air flow path downstream from the outlet conduit; and, an agitation member operatively engageable with the pre-motor filter.

A surface cleaning apparatus includes a surface cleaning head having a dirty air inlet and an upper section mount moveably coupled to the surface cleaning head. An upper portion is mounted to the upper section mount. The upper section comprises a wand. A portable surface cleaning unit is removably mounted to the upper portion. An air flow path extends from the dirty air inlet to a clean air outlet and includes an upstream portion comprising the wand and a flexible air flow conduit downstream of the wand. Each of the wand and the portable cleaning unit can be separately removable from the upper section mount.

A vacuum cleaner that includes a suction motor and a filter assembly. The filter assembly surrounds at least part of the suction motor and has a frame to which a filter medium is attached. The filter medium is spaced from a wall of the frame such that an arcuate passageway is defined between the filter medium and the frame. A part of the air expelled by the suction motor enters a first end of the passageway and moves around the passageway in a clockwise direction. A further part of the air expelled by the suction motor enters a second end of the passageway and moves around the passageway in a counter-clockwise direction. Air within the passageway then passes through the filter medium.

A hand vacuum cleaner may include a suction motor and fan assembly that is positioned downstream of a pre-motor filter. A post motor filter may be positioned downstream of the suction motor and fan assembly and may be in the lower end of the hand vacuum cleaner and an energy storage member may be in an upper end of the handle.

An upright vacuum cleaner with one or more features, such as a top opening rigid container, a headlight, a replaceable power cord a motor housing suspended within the vacuum to reduce noise and/or vibration a clutch assembly with a RPM sensor, and/or one or more filter plates to improve airflow.

Provided is a vacuum attachment for picking up an object. The vacuum attachment in embodiments comprises a hollow body with open ends including an intake end as well as a vacuum-side end. The vacuum-side end is sized and configured to removably attach to an intake port of a vacuum source. A channel is formed within the hollow body and extends along a longitudinal axis of the hollow body from the vacuum-side end to the intake end. A filter is disposed within the channel, transverse to the longitudinal axis of the hollow body, and adjacent to, but offset from, the intake end of the hollow body so as to form a lip surrounding the filter. The filter is fixedly attached to an inner surface of the hollow body. In some embodiments, the filter is configured to pass solid particulates but to block objects larger than solid particulates.

A robot cleaner comprising: a cleaner body including a wheel unit for autonomous traveling and a suction unit sucking air containing dust; a sensing unit disposed at one side of the cleaner body; a dust container accommodated in a dust container accommodation part formed at the other side of the cleaner body, the dust container collecting dust filtered from sucked air; and a dust container cover disposed to cover a top surface of the dust container, wherein an upper end of the sensing unit is formed at a position protruding upward from a top surface of the cleaner body and a top surface of the dust container cover.