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

A surface cleaning apparatus comprises an air treatment chamber having a first end comprising a first end wall, an axially spaced apart second end comprising a second end wall, a sidewall extending between the first and second end walls, an air treatment chamber air inlet and an air treatment chamber air outlet provided at the second end. A dirt collection region, which is contiguous with the air treatment chamber, is positioned axially from the first and second end walls and is closer to the second end wall than the first end wall.

A vacuum cleaner includes a body having a space that allows air to flow therethrough. The vacuum cleaner includes a suction inlet that introduces the air into the body and a first cyclone in the body. The first cyclone separates foreign substances from the air introduced into the suction inlet. The vacuum cleaner includes a dust separation module having a filter unit that separates foreign substances from the air introduced from the first cyclone. The dust separation module also includes a second cyclone arranged within and separated from the filter unit. The second cyclone includes a cyclone base, a storage unit arranged adjacent to a lower portion of the second cyclone, and a cyclone array coupled to the cyclone base. The cyclone array allows the air to pass through an upper portion of the second cyclone and discharge the foreign substances collected by the second cyclone to the storage unit.

A vacuum cleaner includes a body having a space that allows air to flow therethrough. The vacuum cleaner includes a suction inlet that introduces the air into the body and a first cyclone in the body. The first cyclone separates foreign substances from the air introduced into the suction inlet. The vacuum cleaner includes a dust separation module having a filter unit that separates foreign substances from the air introduced from the first cyclone. The dust separation module also includes a second cyclone arranged within and separated from the filter unit. The second cyclone includes a cyclone base, a storage unit arranged adjacent to a lower portion of the second cyclone, and a cyclone array coupled to the cyclone base. The cyclone array allows the air to pass through an upper portion of the second cyclone and discharge the foreign substances collected by the second cyclone to the storage unit.

A valve arrangement (900) for generating a pulse of air (1100) to clean an air filter (125) of a pre-separator (120), the arrangement (900) comprising: a main valve closure body (950) arranged to seal a passage (951) between a high pressure (P2) side and a low pressure (P3) side of the valve arrangement (900), a control body (940), connected to the main valve closure body (950), such that a position of the main valve closure body (950) Is determined by a position of the control body (940), a control chamber (930), partially defined by the control body (940), whereby a volume of the control chamber (930) Is variable In relation to the position of the control body (940), and a control chamber valve (920) having an open state and a closed state for regulating a pressure (P1) In the control chamber, wherein the control chamber (930) Is fluidly connected to the low pressure (P3) side via a connecting channel (935) configured with a connecting channel aperture (936), wherein the control chamber valve (920) Is configured with an aperture larger than the connecting channel aperture (936) such that the control chamber valve (920) Is arranged to overcome the connecting channel (935), and wherein the state of the control chamber valve (920) Is determined by a trigger device (910, 980). The arrangement also comprises a resilient trigger membrane (980) arranged between the high-pressure (P2) side and the low pressure (P3) side wherein the state of the control chamber valve (920) is determined by the position of the resilient trigger membrane (980).

A valve arrangement (900) for generating a pulse of air (1100) to clean an air filter (125) of a pre-separator (120), the arrangement (900) comprising: a main valve closure body (950) arranged to seal a passage (951) between a high pressure (P2) side and a low pressure (P3) side of the valve arrangement (900), a control body (940), connected to the main valve closure body (950), such that a position of the main valve closure body (950) Is determined by a position of the control body (940), a control chamber (930), partially defined by the control body (940), whereby a volume of the control chamber (930) Is variable In relation to the position of the control body (940), and a control chamber valve (920) having an open state and a closed state for regulating a pressure (P1) In the control chamber, wherein the control chamber (930) Is fluidly connected to the low pressure (P3) side via a connecting channel (935) configured with a connecting channel aperture (936), wherein the control chamber valve (920) Is configured with an aperture larger than the connecting channel aperture (936) such that the control chamber valve (920) Is arranged to overcome the connecting channel (935), and wherein the state of the control chamber valve (920) Is determined by a trigger device (910, 980). The arrangement also comprises a resilient trigger membrane (980) arranged between the high-pressure (P2) side and the low pressure (P3) side wherein the state of the control chamber valve (920) is determined by the position of the resilient trigger membrane (980).

A surface cleaning apparatus comprises an air treatment chamber with a moveable member positioned therein. An end wall of the air treatment chamber is openable in response to a moveable member being longitudinally translated through at least the portion of the air treatment chamber. The driving assembly includes a handle and a drive rod that is rotatably mounted about a longitudinally extending axis of the drive rod between a stored position in which the moveable member is in a stored position and an operable position in which the moveable member is translatable through at least a portion of the chamber. In the stored position, the handle is longitudinally spaced from the first and second ends of the air treatment chamber and, when the driving assembly is in the operable position, the driving assembly is operable to longitudinally translate the moveable member through at least a portion of the chamber.

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 docking station is provided for allowing decontaminating parts of a floor care device. The floor care device includes at least one part that is susceptible to contamination when the floor care device is used in a floor care mode. The method may include detecting a transition of the floor care device to a park mode, and in response thereto, executing a decontamination program, the decontamination program including emitting light in a violet portion of the visual spectrum and thereby illuminating the at least one part for the decontamination thereof.

A docking station is provided for allowing decontaminating parts of a floor care device. The floor care device includes at least one part that is susceptible to contamination when the floor care device is used in a floor care mode. The method may include detecting a transition of the floor care device to a park mode, and in response thereto, executing a decontamination program, the decontamination program including emitting light in a violet portion of the visual spectrum and thereby illuminating the at least one part for the decontamination thereof.