A cleaning apparatus comprises a cleaner module provided with a module mounting portion, a wireless cleaning module removably mounted to the cleaner module, and a wired cleaning module provided with a canister, a connection hose connected from the canister to the cleaner, and a connector provided in the connection hose to be removably mounted to the cleaner module. A wired cleaning mode using the wired cleaning module and a wireless cleaning mode using the wireless cleaning module are selectively operated by mounting one of the connector of the wired cleaning module and the wireless cleaning module, to the module mounting portion.

A cleaner includes: a suction motor that generates suction force; a dust separation unit that separates dust from air sucked by the suction force; a motor housing that covers the suction motor; a flow guide that surrounds an outer side of the motor housing and guides air discharged from the dust separation unit to the suction motor; and a body that forms an external appearance by surrounding the flow guide and guides air discharged from the suction motor together with the flow guide.

A vacuum cleaner according to an aspect includes a case defining a dust collecting space in which dust is stored and having a boss, a dust container cover rotatably connected to the case and configured to open/close the dust collecting space, and an opening/closing part configured to open the dust container cover, wherein the dust container cover has a cover locker having a rib caught by the boss, the opening/closing part includes a pair of push parts installed in the case and elastically deformed by a user, and the rib is spaced apart from the boss as the cover locker is deformed while the pair of push parts are moved in a direction in which the push parts become closer to each other.

A cyclone assembly for a surface cleaning apparatus has a first cyclonic cleaning stage and a second cyclonic cleaning stage downstream from the first cyclonic cleaning stage. The second cyclonic cleaning stage has more air inlets than the first cyclonic cleaning stage. The second cyclonic cleaning stage has a second stage air inlet cross-sectional area in a direction transverse to a direction of air flow entering the second stage cyclone chamber that is 1.1-2 times larger than a first stage air inlet cross-sectional area in a direction transverse to a direction of air flow entering the first stage cyclone chamber.

Methods and apparatus for cleaning a surface with a cleaning device having a body with a handle, a connector, and one or more cleaning heads that are removably attached to the cleaning device. Each cleaning head include a lower surface arranged to contact a surface to be cleaned and a dirt collection chamber permanently attached to the cleaning head. The cleaning head may include a support structure to support the dirt collection chamber and a cleaning sheet. The cleaning head also may include a suction nozzle. At least a portion of the dirt collection chamber may be made of a filter material.

Methods and apparatus for cleaning a surface with a cleaning device having a body with a handle, a connector, and one or more cleaning heads that are removably attached to the cleaning device. Each cleaning head include a lower surface arranged to contact a surface to be cleaned and a dirt collection chamber permanently attached to the cleaning head. The cleaning head may include a support structure to support the dirt collection chamber and a cleaning sheet. The cleaning head also may include a suction nozzle. At least a portion of the dirt collection chamber may be made of a filter material.

A surface cleaning apparatus includes first and second pre-motor filters that are in parallel.

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 stick surface cleaning apparatus has a cyclone unit provided in the wand.

Methods and apparatus for cleaning a surface with a cleaning device having a body with a handle, a connector, and one or more cleaning heads that are removably attached to the cleaning device. Each cleaning head include a lower surface arranged to contact a surface to be cleaned and a dirt collection chamber permanently attached to the cleaning head. The cleaning head may include a support structure to support the dirt collection chamber and a cleaning sheet. The cleaning head also may include a suction nozzle. At least a portion of the dirt collection chamber may be made of a filter material.