An air intake system having an air filter and a cyclonic pre-cleaner is described. The cyclonic pre-cleaner includes a plurality of fins that cause the air flowing through the pre-cleaner to go from a substantially axial flow to a substantially swirling flow. As the air flow through the pre-cleaner increases, the air is swirled at a faster rate, and some contaminant particles in the air will be forced out of the flow of air before reaching the air filter. The air intake system includes a blower unit having a motor, an impeller, and a controller. The blower unit structured to selectively draw more air through the air intake system to increase the flow of air through the pre-cleaner thereby increasing the efficiency of the pre-cleaner.

A surface cleaning apparatus comprising a first cyclonic cleaning stage having a first cyclone chamber and a first dirt collection chamber external to the first cyclone chamber. The first cyclone chamber has a cyclone first end, an opposed cyclone second end, a cyclone sidewall extending between the cyclone first end and the cyclone second end, a cyclone air inlet, a cyclone air outlet, a cyclone dirt outlet in communication with the first dirt collection chamber and a cyclone longitudinal axis extending from the cyclone first end to the cyclone second end. The dirt outlet comprises a plurality of apertures.

A flexible electrode assembly for an air treatment device comprising: a flexible dielectric layer forming an insulating sheet; a plurality of conductive tracks on a first side of the insulating sheet; a conductive layer on a second side of the insulating sheet; wherein supply of voltage to the conducting tracks and the conductive layer generates plasma which is discharged from the conducting tracks. In a further aspect, the present invention also provides an air treatment apparatus for removal of health threatening airborne pollutants, which may include pathogens, from an air flow, the air treatment apparatus comprising an apparatus having a generally cyclonic-shaped geometry comprising a cylindrical section and a conical section. The present invention also relates to an air treatment device comprising the flexible electrode assembly.

A surface cleaning apparatus comprises a cyclone chamber having a cyclone axis of rotation and an openable portion wherein the openable portion is rotatably mounted about an opening axis that is parallel to the cyclone axis of rotation.

A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A driving assembly is drivingly connected to the moveable member wherein the driving assembly is operable between a stored position is which the surface cleaning apparatus is operable to clean a surface and a cleaned position in which the moveable member has been translated through at least a portion of the chamber, wherein, in the stored position, a portion of the driving assembly is longitudinally spaced from the first and second axially spaced apart ends of the air treatment chamber.

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A handle is drivingly connected to the moveable member by a driving linkage wherein part of the driving linkage extends through a slot in the sidewall of the air treatment member, whereby the moveable member is longitudinally translatable through at least a portion of the chamber

A surface cleaning apparatus comprises an air treatment member having an air treatment chamber. A moveable member is positioned in the air treatment chamber. A driving assembly is drivingly connected to the moveable member wherein an end wall of the air treatment chamber is openable in response to the moveable member being longitudinally translated through at least the portion of the air treatment chamber.

A surface cleaning apparatus includes an air flow path, a cyclone bin assembly, and a suction motor. The air flow path extends from a dirty air inlet to a clean air outlet. The cyclone bin assembly is provided in the air flow path, and includes a cyclone chamber, a cyclone air inlet, a cyclone air outlet, a cyclone axis of rotation, and an axially extending cyclone chamber sidewall extending between first and second axially opposed ends. The cyclone chamber sidewall has first portion that is moveably mounted with respect to a second portion of the cyclone chamber sidewall between a closed position in which the first and second portions meet at a first juncture and a second juncture and an open position in which the cyclone chamber is opened. The first juncture extends at an angle to a plane that is transverse to the cyclone axis of rotation.

A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.