An electrostatic precipitator is disclosed. The electrostatic precipitator includes an ionization unit configured to generate ions and a dust collection unit configured to electrically collect dust to which the ions are attached. The ionization unit is an ionizer that applies a predetermined voltage to an electrode needle to cause a corona discharge to generate the ions having the same polarity as a polarity of the applied voltage. The dust collection unit includes a high-voltage electrode disposed having a plurality of gaps for passing the dust to which the ions are attached, and a dust collection board disposed at a rear stage of the high-voltage electrode. A polarity of the voltage applied to the electrode needle of the ionization unit and the polarity of the voltage applied to the high-voltage electrode are set to the same polarity.

This publication discloses a filter unit connectable to a mobile communication device including a fan for generating an air flow inside the filter unit, electrodes covered with a photo catalytic material like TiO.sub.2 in the air flow, UV-LEDs illuminating the electrodes, and outlet for the air flow directed in direction of user of filter unit.

A plasma purification module is described. The plasma purification module includes a first electrode plate, a second electrode plate, at least one long electrode and a catchment element. The first electrode plate is configured to be connected to a first electrode of a power supply. The second electrode plate is disposed over a surface of the first electrode plate, and is configured to be connected to a second electrode of the power supply, in which the second electrode plate has a channel. The long electrode is configured to form a discharge area. The long electrode is disposed on the surface of the first electrode plate and passes through the channel. The long electrode has a tip. The catchment element is disposed adjacent to the tip, and is configured to provide the discharge area with mist or water.

The present invention relates to an air conditioner including a dust collecting filter assembly for collecting foreign substance from the air sucked in through an inlet. The dust collecting filter assembly includes a high-voltage electrode film, a ground electrode films alternately disposed to face the high-voltage electrode film, a separator film disposed between the high-voltage electrode film and the grounding electrode film so that the high-voltage electrode film and the grounding electrode film are spaced apart by a predetermined interval, and a fastening part to fasten the high-voltage electrode film, the ground electrode film, and the separator film together and integrate them. With this configuration, it is possible to simplify the manufacturing process of the dust collecting filter assembly provided in the air conditioner, minimize the distance between the high-voltage electrode film and the ground electrode film, and improve the dust collection performance by improving a dust collection area by the separator film.

An air decontamination device (100) comprising: an input unit (102); an output unit (103); and a decontamination unit (104) coupled at a first end (122) to the input unit (102) and coupled at a second end (124) to the output unit (103). The decontamination unit (104) comprises: pairs of conducting plates (108), where one conducting plate of each pair is for being positively charged and the other conducting plate of each pair is for being negatively charged. The positively charged plate and negatively charged plate are separated to form an airflow path (212) and a 3D material (110) that is capable of being potentiated by static electric field is coupled to each side of conducting plate (108). When the static electric filed is applied, the surface moieties of the 3D material (110) are realigned to a direction of the static electric field to potentiate the antimicrobial activity of the 3D material (110) for destroying the microbes present in the received air.

A composite fiber having a core sheath-structure that includes a core portion having an electrically conductive material, and a sheath portion having a ceramic component covering the core portion. The composite fiber is constructed such that, when the core portion is connected to a ground, the sheath portion exhibits one of a positive surface potential or a negative surface potential over an entire surface of the sheath portion.

An air purification apparatus and methods of air purification and treatment using ionization is disclosed. In some embodiments, an ion generator apparatus comprises a modular electrode and a housing connected to the modular electrode. The modular electrode includes an elongated conduit body comprising a power receiving end and a conduit connecting end opposite the power receiving end; and a plurality of ion generating elements occupying different radial positions around a perimeter of the conduit body, the ion generating elements generating negative ions or positive ions in response to an applied alternating current. A first electrical connector on the power receiving end is connectable to a second electrical connector on the conduit connecting end of another conduit body, such that a plurality of conduit bodies can be connected together in a series. The housing is connected to a power receiving end of one of the conduit bodies of the modular electrode.

An apparatus for treating air, such as an air humidifier, air cleaner, air washer or the like, may include a rinse-around body around which liquid rinses, an air conduction system arranged to stream the air to be treated against the rinse-around body, and an electrostatic precipitator assigned to the rinse-around body such that solid and/or liquid particles are precipitated from the air to be treated streaming against the rinse-around body and that the precipitated particles enter the liquid.

An apparatus for treating air, such as an air humidifier, air cleaner, air washer or the like, may include a rinse-around body around which liquid rinses, an air conduction system arranged to stream the air to be treated against the rinse-around body, and an electrostatic precipitator assigned to the rinse-around body such that solid and/or liquid particles are precipitated from the air to be treated streaming against the rinse-around body and that the precipitated particles enter the liquid.

A yarn containing a potential-generating filament. The yarn is constructed such that a positive or negative surface electrical potential is generated by applying an external force to the yarn in an axial direction of the yarn, and constructed such that a controlled surface electrical potential is generated by a maintenance or release of the external force.