The present invention relates to a cyclone separation device for separating particles from air and a cyclone vacuum cleaner (80). It has the objective to reduce noise without impairing the dirt separation performance. This is achieved an arrangement comprising a cyclone chamber (10), a dirt collecting chamber (50) arranged adjacent to the cyclone chamber (10) for collecting dirt particles separated from air, a dirt-duct (40) between the cyclone chamber (10) and the dirt collecting chamber (50) for allowing dirt particles to pass from the cyclone chamber (10) towards the dirt collecting chamber (50), and an air-guide (60) arranged adjacent to the dirt-duct (40) for reducing the momentum of the air in the dirt-duct (40).

A reconfigurable surface cleaning apparatus includes a floor cleaning unit comprising a surface cleaning head, and a portable cleaning unit. The reconfigurable surface cleaning apparatus is operable in an above floor cleaning mode in which the portable cleaning unit is removed from the floor cleaning unit and in a floor cleaning mode in which an upflow duct is received in the portable cleaning unit and defines the air flow passage upwardly through the portable cleaning unit to a cyclone chamber air inlet.

A hand vacuum cleaner comprises a main body and a removably mounted air treatment member. The air treatment member has an air flow passage which comprises a handle for the air treatment member.

A surface cleaning apparatus comprises a hand vacuum cleaner, a surface cleaning head and a rigid air flow conduit extending between the surface cleaning head and the hand vacuum cleaner. The hand vacuum cleaner comprises a main body and a removably mounted air treatment member. The air treatment member has an air inlet and the outlet end of the rigid air flow conduit is removably connectable in air flow communication with the air inlet.

A cyclone separator useable in a surface cleaning apparatus comprises a cyclone chamber and a dirt collection chamber exterior to, and surrounding at least a portion of the cyclone chamber. The dirt collection chamber is in communication with the cyclone chamber via a dirt outlet. An air flow passage extending to the cyclone air inlet travels generally axially through the dirt collection chamber.

A vacuum cleaner has a portable cleaning unit that is removably mounted to the surface cleaning head. The vacuum cleaner is operable in a floor cleaning configuration in which the portable cleaning unit is mounted to the surface cleaning head and is part of the air flow path through the vacuum cleaner. The portable cleaning unit is also useable in a portable cleaning configuration in which the portable cleaning unit is removed from the surface cleaning head and the suction motor is powered by an energy storage member.

A cleaner includes: a suction unit; a suction motor that generates suction force for sucking air through the suction unit and includes an impeller; a dust separation unit that includes one or more cyclone units generating cyclonic flow to separate dust from air flowing inside through the suction unit; a dust container that stores dust separated by the dust separation unit and is disposed under the suction motor; a battery disposed behind the dust container to supply power to the suction motor; and a handle disposed behind the suction motor, wherein a rotational axis of the impeller and an axis of the cyclonic flow vertically extend and an extension line from the rotational axis of the impeller passes through the one or more cyclone units.

A cleaner includes: a suction motor that generates suction force; a dust separation unit disposed under the suction motor and separates dust from air; a handle disposed behind the suction motor; and a battery disposed under the handle and behind the dust separation unit to supply power to the suction motor.

A cleaner includes: a suction motor that generates suction force; a dust separation unit that is disposed behind the suction motor and separates dust from air sucked by the suction force of the suction motor; a dust container that stores dust separated by the dust separation unit; a handle disposed behind the dust separation unit; a battery housing disposed under the handle; and a battery that is detachably coupled to the battery housing and is separable downward from the battery housing.

A vacuum cleaner including a debris separator having a cyclonic separator including a cylindrical wall having a first end and a second end, the cylindrical wall located in within the housing, the cyclonic separator further including a dirty air inlet, a clean air outlet, an end wall at the first end of the cylindrical wall, and a debris outlet adjacent the second end of the cylindrical wall. The debris separator further includes a lid coupled to an upper end of the housing, a debris collection chamber located within the housing and in fluid communication with the debris outlet of the cyclonic separator, and a door coupled to a lower end of the housing to empty the debris collection chamber through the lower end of the housing. A portion of the cyclonic separator is removable from the housing through the lower end of the housing.