The present application relates to a purification unit, a purification device and a using method, belonging to the technical field of air purification, the purification unit includes a frame, an electrostatic dust removal zone located inside the frame, the electrostatic dust removal zone is located inside the frame, a support plate located on an outer side of the frame, wherein an insulation member is connected between the support plate and the frame; and a conductive assembly connected to a high-voltage end of the electrostatic dust removal zone and the support plate. A grounding end of the electrostatic dust removal zone is connected to the frame.

A return air grille air purifier including an air filtration system including a media filter and a filter enhancement module. The filter enhancement module includes an ionization array configured to charge particles in an airstream passing through the filter enhancement module and towards the media filter. The return air grille air purifier also includes a first housing and a second housing configured to contain the air filtration system. The second housing contained within the first housing in a closed position and the second housing configured to move outward with the air filtration system at least partially out of the first housing in an open position. The media filter being removably accessible from the second housing in the open position.

An electrification apparatus for dust collection includes an electrification module configured to generate an ion emitted to air and comprising: at least one discharge tip configured to emit the ion in a direction opposite to a flow direction of the air, at least one tip holder supporting the discharge tip, a conductive plate generating a potential difference with the discharge tip, and a frame defining an appearance of the electrification module and supporting the tip holder and the conductive plate. The frame comprises an upper frame disposed at an upper side of the conductive plate and a lower frame disposed at a lower side of the conductive plate, the tip holder is disposed between the upper frame and the lower frame, and an upper surface of the tip holder is coupled to the upper frame and a lower surface of the tip holder is coupled to the lower frame.

The present invention provides methods and systems for an ionization device that includes a base portion, a first pair and a second pair of opposed sidewalls extending upwardly from the base portion to form an upper edge, a top portion is engaged to the upper edge, and a cavity is formed within the base portion, the two pairs of opposed sidewalls, and the top portion. A probe assembly is disposed on the top portion, wherein the probe assembly comprises a probe seat selectively secured to an exterior portion of the top portion and a wire extends through the probe seat for supplying electrical current to an emission portion that emits ions.

The electric dust collecting apparatus comprises a plurality of discharge electrodes that are disposed in an exhaust flow passage, a ground electrode that constitutes at least a part of an inner wall surface of the exhaust flow passage, and a voltage applying device that is configured to apply voltage selectively from a common power supply to each of the plurality of discharge electrodes. The plurality of discharge regions, each of which includes at least one discharge electrode, are provided in the exhaust flow passage and an electrode-to-electrode distance between the discharge electrode and the ground electrode is different in each of the plurality of discharge regions. The voltage applying device applies voltage to the discharge electrode for each discharge region, and changes the discharge region where voltage is applied to the discharge electrode in accordance with exhaust gas temperature.

A shaft member has the same polarity as discharge electrodes. Each of the discharge electrodes has an electrode body and a tip end which is formed at an end of the electrode body facing an inner peripheral surface of a counter electrode. The discharge electrodes extend such that the tip ends and the electrode bodies are misaligned with each other in an axial direction of the shaft body. A streamer discharge travels from the tip ends of the discharge electrodes toward the inner peripheral surface of the counter electrode.

The present invention provides methods and systems for an ion generation device that includes an elongate housing having a back portion and a pair of side portions extending from the back portion and forming a cavity therein. A conductive portion is disposed within the cavity and connected to a power supply for providing power to the conductive portion. A plurality of tines are engaged to the conductive portion.

Disclosed is an air cleaning device for air conditioners. The air cleaning device includes a charging unit, and a dust collector including ground bodies and high voltage applied bodies forming a potential difference with the ground bodies, and disposed after the charging unit in an air flow direction, the charging unit includes a charging unit body and carbon fiber electrodes installed on the charging unit body, and a hydrophilic layer is formed on the outer surface of at least one of the ground bodies and the high voltage applied bodies. The air cleaning device may minimize an amount of generated ozone and an amount of generated ions, as compared to a case having a charging unit in which electrical discharge wires and opposite electrodes are alternately disposed, and increase dust collection efficiency with a simple structure and at low costs.

Aspects of the present disclosure include a protective mask to be worn over a nose and mouth of a wearer to protect the wearer from hazards in surrounding ambient air. The mask includes a mask portion, an airway, and an ionization filter. The mask portion includes an interior that extends over the nose and mouth of the wearer. The airway extends between the interior of the mask portion and the surrounding ambient air. The ionization filter includes an emitter within a portion of the airway, and a collector plate radially encompassing the emitter and defining at least a portion of the airway. The collector plate is electrically connected to at least first and second conductive porous filters. The first and second conductive porous filters and the collector plate collectively form at least a portion of a Faraday cage that encapsulates the emitter.

The present invention discloses a cylindrical IFD filter, comprising a dust collecting module and a field power module interval arranged inside the channel of the dust collecting module, a plurality of field power module units are symmetrically and vertically spaced arranged on the side wall of the field power module; a plurality of layers of the dust collecting module channels which are stacked vertically are pass-through arranged on the dust collecting module, and each barrier wall between the vertical adjacent dust collecting module channels is alternately disposed as a pair of positive plate and negative plate, each barrier wall between the vertical adjacent dust collecting module channels comprises polar plate electrode and a polar plate coating coated on the upper and bottom walls of the polar plate electrode; and each barrier wall between the lateral adjacent dust collecting module channels adopts same coating material as the polar plate coating. The present invention has the advantages of having larger particulate contaminant charge and higher filtering efficiency.