An ion generating device can include a housing having an opening, an anode and a cathode disposed within the housing and having a space between them in fluid communication with the opening, a power source having a negative terminal and a positive terminal with a first connection between the negative terminal and the anode and a second connection between the positive terminal and the cathode, and an air mover disposed to direct an air flow through the space and out of the opening.

An ion generating device can include a housing having an opening, an anode and a cathode disposed within the housing and having a space between them in fluid communication with the opening, a power source having a negative terminal and a positive terminal with a first connection between the negative terminal and the anode and a second connection between the positive terminal and the cathode, and an air mover disposed to direct an air flow through the space and out of the opening.

A method of making an electronic air filter that requires obtaining a first metallic plate comprising copper and a second metallic plate comprising copper. The method also requires creating a first pattern of slits through the first metallic plate's thickness and a second pattern of slits through the second metallic plate's thickness and expanding (a) the first slitted metallic plate to form a first aperture metallic plate and (b) the second slitted metallic plate to form a second aperture metallic plate wherein when the first aperture metallic plate and the second aperture metallic plate are properly aligned and positioned in an electronic air cleaner device then the apertures in the first aperture metallic plate and the apertures in the second aperture metallic plate misalign or do not align with each other. Another requirement is that the method calls for applying a dielectric conducting and antimicrobial agent polymer material to (a) the first aperture metallic plates to form a first coated, aperture metallic plate and (b) the second aperture metallic plates to form a second coated, aperture metallic plate.

The present disclosure relates to an electrostatic charger and an electrostatic precipitator securing a wide space for charging suspended fine particles contained in a processing airflow. The electrostatic charger includes a discharge electrode formed of a plurality of fibrous conductors and provided to generate and diffuse ions by a discharge, a ground electrode maintained at a ground potential and provided to attract the ions generated and diffused by the discharge electrode to charge suspended fine particles contained in a processing airflow by the ions, where the discharge electrode is disposed between the ground electrodes in the processing airflow, and all or at least a part of the plurality of fibrous conductors of the discharge electrode are disposed on a downstream side of the processing airflow further than an end portion of the ground electrode on the most upstream side of the processing airflow.

Disclosed herein is a charging apparatus and precipitator. The charging apparatus includes a plurality of counter electrodes formed in a plate shape and arranged in a direction intersecting with a ventilation direction to allow respective surfaces thereof to follow the ventilation direction, and a plurality of high voltage electrodes formed in a wire shape and installed between the plurality of counter electrodes. The plurality of counter electrodes includes a first counter electrode having a first electrode area, and a second counter electrode having a second electrode area less than the first electrode area. The first counter electrode and the second counter electrode are alternately arranged.

This publication discloses an electrostatic filter construction, to be positioned in air ducts or ventilation channels, which electrostatic filter construction includes a charging unit, which charges the particles to be filtered into a first electric potential and arranged in the filter construction in the path of the air flow before filter elements, electrically conducting electrodes connected to a second electric potential different to the potential of the charged particles and set substantially parallel to the direction of the airflow, and bag shaped filter elements positioned after the charging unit in the path of the air flow. According to the invention each bag shaped filter element has at least one designated UV-light source and an element of photo catalytic material like TiO.sub.2.

An air purification unit including an electric filter module through which air to be purified can flow and a first electrode and a second electrode between which the air to be purified flows and between which a first electric field can be generated by applying an electric high voltage provided by a power supply module, wherein the first electrode and the second electrode form an ionizer and wherein a mechanical filter module with a mechanical filter element is arranged downstream of the electric filter module in the direction of flow of the air to be purified, wherein a third electrode is provided in the mechanical filter element or in the mechanical filter module downstream of the mechanical filter element, and wherein a second electric field can be generated between the second electrode and the third electrode by applying an electric voltage.

An air purification unit including an electric filter module through which air to be purified can flow and a first electrode and a second electrode between which the air to be purified flows and between which a first electric field can be generated by applying an electric high voltage provided by a power supply module, wherein the first electrode and the second electrode form an ionizer and wherein a mechanical filter module with a mechanical filter element is arranged downstream of the electric filter module in the direction of flow of the air to be purified, wherein a third electrode is provided in the mechanical filter element or in the mechanical filter module downstream of the mechanical filter element, and wherein a second electric field can be generated between the second electrode and the third electrode by applying an electric voltage.

The present invention relates to a dust collecting filter and a method for manufacturing a dust collecting filter. The dust collecting filter of the present invention may include: a first filter medium that is bent into a corrugated shape and forms a plurality of bent portions; a plurality of first electrodes disposed on one surface of the first filter medium along the corrugated shape of the first filter medium and to which a high voltage is applied; and a plurality of second electrodes disposed along the corrugated shape of the first filter medium so as to be spaced apart from each other between the plurality of first electrodes and are grounded.

A Dust Mitigation System (“DMS”) is disclosed that includes a fabric-material having a front-surface and a back-surface; a plurality of conductive-fibers within the fabric-material; and a plurality of input-nodes approximately adjacent to the back-surface or the front-surface of the fabric-material. The plurality of conductive-fibers are approximately parallel in a first direction along the fabric-material and are approximately adjacent to the front-surface of the fabric-material and the plurality of input-nodes are in signal communication with the plurality of conductive-fibers and configured to receive an alternating-current (“AC”) voltage-signal from an input-signal-source. The plurality of conductive-fibers are configured to generate an electric-field on the front-surface of the fabric-material in response to the plurality of input-nodes receiving the AC voltage-signal from the input-signal-source and a traveling-wave (from the electric-field) that travels along the front-surface of the fabric-material in a second direction that is transverse to the first direction.