Present embodiments relate to ionization of air flow within heating, ventilation and air conditioning (HVAC) systems. More specifically, but without limitation, present embodiments relate to ionization systems, for example bipolar ionization, which are controlled in part by a signal from or powered by the blower motor controller of the HVAC system so that the ionization system functions when the blower is on.

An air treatment device includes a casing with an air inlet and an air outlet. Air flows through the casing and an air treatment section in the casing. The air treatment section includes a fan for generating a flow of air from the air inlet to the air outlet, a filtering means arranged within the flow of air, a first pressure sensor to measure a first pressure in the flow of air, a second pressure sensor to measure a second pressure in a room or cabin surrounding the air treatment device, and a control unit. The control unit is configured to adapt a speed of the fan based on the measured first pressure and the measured second pressure to control a flow of air through the air treatment device.

Disclosed herein is an electrostatic precipitation method using an electrostatic precipitator including a collection module having a collection electrode and a discharge electrode, a housing having an internal partition wall formed therein, an inlet-side passage switching member, and an outlet-side passage switching member. The electrostatic precipitation method includes collecting dust by applying a voltage to the discharge electrode while gas flows, closing some of the flow spaces, divided by the internal partition wall using the passage switching members, and performing dust collection for one of the opened flow spaces by applying a voltage to the discharge electrode therein, and performing washing for at least one of the closed flow spaces by supplying washing water to the collection electrode therein.

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.

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 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.

The present disclosure relates to a trap device for a powder coating apparatus. The trap device includes a body part including an inlet through which exhaust gas containing lost powder is introduced, an outlet through which the exhaust gas is discharged, and an interior space in communication with the inlet and the outlet and a trap part that is located in the interior space of the body part and that traps the lost powder contained in the exhaust gas by a magnetic force.

The present disclosure relates to a trap device for a powder coating apparatus. The trap device includes a body part including an inlet through which exhaust gas containing lost powder is introduced, an outlet through which the exhaust gas is discharged, and an interior space in communication with the inlet and the outlet and a trap part that is located in the interior space of the body part and that traps the lost powder contained in the exhaust gas by a magnetic force.

An apparatus, and method for air purification and airborne microbial deactivation is described. In one embodiment, liquid is being used as a medium to attach air pollutants and deactivate microbes in the air. In one embodiment a negative charge is imparted for the formation of dense electric fields and negative ions using negative ion generators, corona discharge or plasma and using liquid as capturing media and disinfecting source; The air purification is done through a batch or a continuous process.

A purifying device, including: an air guiding part provided with an air passage, a negative ion generator, and an air guiding cover. The negative ion generator includes an emitting head, and the emitting head is arranged to face the air passage. The air guiding part is provided with a first position limiting structure disposed on an inner wall of the air passage, and the first position limiting structure is provided with a position limiting groove configured to receive the emitting head. The air guiding cover is arranged on a top of the inner wall of the air passage and configured to press and cover the position limiting groove, and the inner wall of the air passage is configured to support the air guiding cover.