An air conditioner including a housing including a suction panel; a fan disposed inside the housing and configured to generate an air flow which is sucked into the housing through the suction panel to flow in a first direction from upstream to downstream, the suction panel being perpendicular to the first direction; and an electrostatic precipitator disposed inside the housing and including a discharge electrode configured to receive a voltage and to generate ions toward the suction panel, and an upstream electrode disposed upstream of the discharge electrode with respect to the first direction, grounded to form an electric field with the discharge electrode, and disposed between the discharge electrode and the suction panel, wherein at least a portion of the ions generated from the discharge electrode are passed through the suction panel so as to charge aerosols in air outside the housing.

A wearable air purifier includes at least one wearable component, a control unit, at least one speaker assembly and at least one negative ion generating component. The control unit is disposed inside the at least one wearable component. The at least one speaker assembly is disposed on the at least one wearable component and electrically connected to the control unit. The at least one negative ion generating component is disposed on the at least one wearable component and electrically connected to the control unit. The control unit provides high-voltage currents to the at least one negative ion generating component to enable the at least one negative ion generating component to emit negative ions by corona discharging, and the control unit further provides audio signals to the at least one speaker assembly to activate the at least one speaker assembly to generate sound.

Provided is a solvent separation method and a solvent separation apparatus that make it possible to efficiently retrieve the thermal energy possessed by an exhaust atmosphere released in a solvent-removal step to suppress reductions in a temperature of the exhaust atmosphere. In the solvent separation method and the solvent separation apparatus, a vaporized solvent is removed from a gas while heat exchange between the gas within a condensation part and the gas within a dust-collection part is conducted by using a heat exchange part that is placed between the condensation part that introduces the gas into a first direction and the dust-collection part that introduce the gas into a second direction opposite to the first direction the gas discharged from a downstream side of the condensation part.

A charging device or an electric dust collector has a downstream side grounded electrode plate 90 placed so as to obstruct the flow of a dust-containing air and having openings 91 for allowing the dust-containing air to pass therethrough, a supporting plate 60 placed on the upstream side of the electrode plate 90, and downstream side discharging electrodes 80b supported by the supporting plate 60 so as to extend from the supporting plate 60 towards the electrode plate 90, and placed so as to correspond to the openings 91. The tip parts of the discharging electrodes 80b penetrate the openings 91 and project to the downstream side of the electrode plate 90, and the tip part of each discharging electrode 80b and the edge part of each opening 91 are positioned so as to have a predetermined gap between them.

A new type of electrostatic barbed wire includes a plurality of barbs. The plurality of the barbs are woven together to form a fixed body with a strip-like structure. Ends of the plurality of the barbs are located outside the fixed body. A barbed net is also disclosed. The barbed net is woven by the electrostatic barbed wire. In the present application, the proposed new type of electrostatic barbed wire and barbed net are woven with the plurality of the barbs, and a processing technique thereof is simple.

A vane electrostatic precipitator includes a plurality of vanes and a plurality of horizontal discharge electrodes that follow the contour of the vane assembly and are located in front of the vane electrodes. The horizontal discharge electrodes are parallel to the vane assembly, and are located on an angle matching an operating angle of the vane assembly. The precipitator also preferably includes a plurality of concentric, moveable tubular scrapers that keep the horizontal discharge electrodes clean during the process.

There is provided an electrostatic precipitation device of explosive exhaust gas particles that can remove by unipolar charging a particulate material such as SiO.sub.2 that is included in an explosive exhaust gas by charging the explosive exhaust gas with an indirect charging method of charging through ions that are injected from the outside.

An electrification apparatus for an electrostatic dust collector, including: a first electrode part having a shape of a plate having a plurality of through holes formed thereon in such a manner as to apply one of positive and negative electrodes thereto; and a second electrode part having protrusions each having a plurality of fine conductive fibers in such a manner as to protrude outwardly from the through holes of the first electrode part, whereby electrification performance is improved and harmful ozone and electromagnetic waves are reduced.

The present invention provides methods and systems for an ion generator mounting device for application of bipolar ionization to airflow within a conduit, the device includes a housing for mounting to the conduit having an internal panel within the enclosure, and an arm extending from the housing for extension into the conduit and containing at least one opening. At least one coupling for mounting an ion generator to the arm oriented with an axis extending between a pair of electrodes of the ion generator being generally perpendicular to a flow direction of the airflow within the conduit.

An apparatus for separating particles from an air stream, the apparatus having an inlet region for the waste air stream, an outlet region for the waste air stream, a separating device arranged along the waste air stream, and at least one electrode arrangement which is connected to a high voltage source, wherein a charging region having one or more electrodes is provided to form a layer enriched with electrical charges, and wherein a separating region having separating surfaces is provided, which is subordinate to the charging region. The invention also relates to a method for separating particles from the waste air stream of a coating booth, wherein the waste air stream through a charging region in which particles of the waste air stream are charged, and the waste air stream after leaving the charging region flows through a separating region in which charged particles are deposited on separating surfaces.