An air conditioner capable of efficiently collecting foreign substances in the air is disclosed. The air conditioner includes a cabinet, an air blower disposed in the cabinet to cause air to flow, a dust collector case forming a channel for the air caused to flow by the air blower, at least one electrode provided in the dust collector case and formed of carbon fibers to generate ions, and a charged dust collecting filter to collect foreign substances charged by ions generated by the electrode.

A belt-type electric dust collection device capable of automatic cleaning includes a dust collection belt including a plurality of flat parts spaced apart at a predetermined distance, and a plurality of first bent parts and second bent parts formed at both ends of the plurality of flat parts. A plurality of first rollers are provided in a line at the plurality of first bent parts of the dust collection belt, to support and guide the dust collection belt. A plurality of second rollers are provided in a line at the plurality of second bent parts of the dust collection belt. A plurality of electrode plates are provided between the plurality of flat parts of the dust collection belt. A belt cleaning part is provided at one side of the dust collection belt, and a driving part is provided to move the dust collection belt.

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

A structure for providing an indoor space includes an air-sterilizing apparatus configured to suction in air existing in the indoor space and to sterilize the suctioned air, a droplet blocking table configured to discharge the sterilized air in a direction toward a table top so as to allow the discharged air to be suctioned in along a central axis of the droplet blocking table, an air-conditioning apparatus configured to move the air suctioned in by the droplet blocking table, and an ordering apparatus configured to perform an order for a menu according to information input from a user.

Ionizers having carbon nanotube (CNT) ion emitting heads of the present invention include ionization circuitry supplying voltage at ionization potential and carbon nanotube (CNT) ion emitters operatively connected thereto. The carbon nanotube (CNT) ion emitters are mechanically and electrically stable, provide good ion flows for air purification and/or air invigoration when actuated at ionization potential and are capable of prolonged use in highly polluted environments.

A system for providing a centralized aerosol source extraction and filtration system is disclosed. The system includes an aerosol capture component coupled to a set of aerosol capture ductwork being located at or near a patient's mouth while treatment is being provided and is coupled to a set of aerosol capture ductwork, a filter and fan component coupled to the set of aerosol capture ductwork for generating the necessary pressure differential to draw the air about the patient's mouth into the aerosol capture component along with any airborne particulates, contaminants, and pathogens, and a recycled clean air component for returning recycled clean air back to patient areas and workspaces through a set of recycled clean air ductwork arranged to create positive and directional airflow throughout the office space. The filter and fan component has one or more filter layer types to remove particulates, contaminants, and pathogens from an air flow received from the set of aerosol capture ductwork.

The present disclosure relates to air filters. More particularly, it relates to air filters including pleated filter media that can be uniformly expanded and contracted. In some embodiments, the air filters are adjustably sized air filter systems. In some embodiments, the air filters can be used in a window opening.

One aspect of the present invention is an acidic gas separation device including: an electrolyte layer; a pair of electrodes provided with the electrolyte layer interposed between the pair of electrodes; and a voltage application unit that applies a voltage between the pair of electrodes, wherein the pair of electrodes are gas permeable electrodes, and the electrolyte layer contains: at least one selected from the group consisting of high molecular weight redox compounds having a radicalization rate of 90% or more, high molecular weight redox compounds having a quinone group in a molecule, and high molecular weight redox compounds having an imino group in a molecule; and a nonvolatile electrolytic solution.

The present invention relates to an air conditioner, the air conditioner according to the embodiment of the present invention may include; a case forming the exterior; a panel having an air inlet and disposed at one side of the case; an electric dust collector for collecting foreign substances introduced through the air inlet; and a high voltage applying device electrically connected to the electric dust collector, wherein the electric dust collector includes: a discharge electrode extending toward the air inlet and charging particles contained in air introduced through the air inlet; and an electrode holder supporting the discharge electrode so that an angle formed between an extension direction of the discharge electrode and a flow direction of air introduced through the air inlet can be changed. Accordingly, there is an advantage in that the distribution of the ion field can be adjusted by adjusting the angle between the discharge electrode and the flow direction.

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.