A method for sterilising an internal surface of an air purifier or filter media in an air purifier by subjecting said internal surface or filter media to an ion cloud.

In a method and device for separating components in a corona discharge zone an air stream containing water molecules is passed between at least one ionizing electrode and at least one non-ionizing electrode; and high voltage is applied to the electrodes to create a corona discharge zone consisting of a plasma region wherein ozone is formed and a dark region where predominantly hydrogen peroxide is formed. The air flow entering the corona discharge zone is divided into two separate air flows, a first of which passes through the corona discharge plasma region, and a second of which passes through the dark corona discharge region; and a negative pressure gradient is applied to the plasma region only so as to remove the ozone and thereby separate the ozone from the hydrogen peroxide.

Provided is an air cleaner that can take a large amount of air in a large space into a dust collector with good efficiency while being lightweight and having easy maintenance. An air cleaner is provided with a drone and a dust collector. The drone has a main body unit and propellers attached to the tips of frames. The dust collector has electric discharge electrodes and a dust collection electrode. The electric discharge electrodes are connected to a booster unit within a central chamber. The booster unit is electrically connected to a control unit in the main body unit. Electric discharge is formed between the dust collection electrode and the electric discharge electrodes, and dust particles in the air are charged and collected by the dust collection electrode.

Disclosed are an ion generating device and an air conditioner having the same. The air conditioner may include a housing; a blower which causes a flow of air passing through an inner space of the housing; a heat exchanger located in the inner space of the housing; and an ion generating device which is spaced apart from the heat exchanger, and coupled to an inner side of the housing, wherein the ion generating device may include: a hollow body; a fan which is coupled to one side of the body, and causes a flow of air passing through an inside of the body; and an ionizer which is coupled to the other side of the body, and generates ion, wherein the ionizer may include a case hole which is formed in a portion of the ionizer facing the inside of the body, and communicates with the inside of the body.

Disclosed are an ion generating device and an air conditioner having the same. The air conditioner may include a housing; a blower which causes a flow of air passing through an inner space of the housing; a heat exchanger located in the inner space of the housing; and an ion generating device which is spaced apart from the heat exchanger, and coupled to an inner side of the housing, wherein the ion generating device may include: a hollow body; a fan which is coupled to one side of the body, and causes a flow of air passing through an inside of the body; and an ionizer which is coupled to the other side of the body, and generates ion, wherein the ionizer may include a case hole which is formed in a portion of the ionizer facing the inside of the body, and communicates with the inside of the body.

An indoor unit for an air conditioner including: a cabinet assembly forming an external appearance of the indoor unit and having a suction port formed in a rear surface of the cabinet; a filter module movably disposed in rear of the cabinet assembly; a filter module mounted to the filter mounting member and filtering foreign substances in air flowing into the suction port; a mobile member connected to the filter mounting member and moving a position of the filter mounting member; a driving device pressing the mobile member to change the position of the filter mounting member; and a controller configured to, in response to receiving a control command to change the position of the filter mounting member, operate the driving device that presses the mobile member.

An indoor unit for an air conditioner including: a cabinet assembly forming an external appearance of the indoor unit and having a suction port formed in a rear surface of the cabinet; a filter module movably disposed in rear of the cabinet assembly; a filter module mounted to the filter mounting member and filtering foreign substances in air flowing into the suction port; a mobile member connected to the filter mounting member and moving a position of the filter mounting member; a driving device pressing the mobile member to change the position of the filter mounting member; and a controller configured to, in response to receiving a control command to change the position of the filter mounting member, operate the driving device that presses the mobile member.

A chilled beam with a bipolar ion generator located in the plenum. Conditioned air flows into the plenum through an air inlet. The plenum is pressurized by the primary air delivered from the HVAC system. The conditioned air exits the plenum through nozzles into a mixing chamber. The increased velocity of the conditioned air exiting through the nozzles induces return air through return an air inlet, past a heating/cooling coil, and into the mixing chamber. The conditioned air and the return air mix in the mixing chamber to create supply air that exits the chilled beam through supply air outlets. The electrodes of the bipolar ion generator are positioned at different locations in the plenum and are oriented in different directions to the direction of the conditioned air flowing into the plenum.

A chilled beam with a bipolar ion generator located in the plenum. Conditioned air flows into the plenum through an air inlet. The plenum is pressurized by the primary air delivered from the HVAC system. The conditioned air exits the plenum through nozzles into a mixing chamber. The increased velocity of the conditioned air exiting through the nozzles induces return air through return an air inlet, past a heating/cooling coil, and into the mixing chamber. The conditioned air and the return air mix in the mixing chamber to create supply air that exits the chilled beam through supply air outlets. The electrodes of the bipolar ion generator are positioned at different locations in the plenum and are oriented in different directions to the direction of the conditioned air flowing into the plenum.

Systems for detecting aerosolized viral loads in an airspace include a first and, optionally, a second volume of a liquid. The first volume includes particles sampled from the airspace, and the second volume is free of virus particles. A first conductivity probe is immersed in the first liquid, and a second conductivity probe is immersed in the second liquid. An alternating voltage is applied to each of the first and second conductivity probes. The difference between the resulting alternating currents through the first and second conductivity probes is determined, and is used to estimate the viral load in the first volume, and in the airspace.