The indoor unit of a mini-split heat pump has an auxiliary filter mounted atop the air inlet opening of the indoor unit. The auxiliary filter comprising three parallel filtering stages and each of these filtering stages having an air flow capacity equivalent to a nominal air flow rating of the indoor unit. The three filtering stages improve low-air-quality tolerance of a residential indoor unit of a mini-split heat pump, so that commercial and industrial users can also benefit from these high efficiency heat pumps to reduce their carbon footprint.

An air conditioning apparatus according to an aspect of the present invention includes a main body including a suction part through which air is suctioned and a discharge part through which the air suctioned through the suction part is discharged, a fan disposed in the main body to allow the air to flow, an electric charge device coupled to the main body outside the main body to charge dust in the air, and a filter device disposed between the suction part and the discharge part in the main body to collect the charged dust particles.

An air conditioning apparatus according to an aspect of the present invention includes a main body including a suction part through which air is suctioned and a discharge part through which the air suctioned through the suction part is discharged, a fan disposed in the main body to allow the air to flow, an electric charge device coupled to the main body outside the main body to charge dust in the air, and a filter device disposed between the suction part and the discharge part in the main body to collect the charged dust particles.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.

An air conditioner includes an electrostatic dust collector configured to remove foreign matter from air introduced into an inlet of a housing, wherein the electrostatic dust collector includes: at least one electrostatic filter configured to filter foreign matter from air and including a first side wall and a second side wall disposed in an opposite direction to the first side wall; a first filter handle slidingly coupled to the first side wall and detachably coupled to one side of the housing; and a second filter handle slidingly coupled to the second side wall and detachably coupled to another side of the housing, and wherein the first side wall has a structure corresponding to the second side wall.

An air conditioner includes an electrostatic dust collector configured to remove foreign matter from air introduced into an inlet of a housing, wherein the electrostatic dust collector includes: at least one electrostatic filter configured to filter foreign matter from air and including a first side wall and a second side wall disposed in an opposite direction to the first side wall; a first filter handle slidingly coupled to the first side wall and detachably coupled to one side of the housing; and a second filter handle slidingly coupled to the second side wall and detachably coupled to another side of the housing, and wherein the first side wall has a structure corresponding to the second side wall.

An air conditioner includes: a housing having an inlet on one side thereof and an outlet on another side thereof; a fan disposed in the housing and by which air flows from the inlet to the outlet; and an electrostatic dust collector disposed in the housing and configured to remove foreign matter from air introduced into the inlet, allowing the air introduced into the inlet to be filtered. The electrostatic dust collector includes: at least one electrostatic filter including a first side wall and a second side wall disposed in an opposite direction to the first side wall; a first filter handle coupled to the first side wall; and a second filter handle coupled to the second side wall.

The disclosed technology includes a filter having a body that includes one or more notches. The disclosed technology also includes a room air conditioner including a void for receiving the filter. The void can be accessed by an access panel, and the access panel can be located on an outer-face side of the room air conditioner. The room air conditioner can include one or more filter-interfacing structures that can be configured to interface with and/or secure corresponding notches of the filter. The room air conditioner can also include one or more filter retaining brackets configured to releasably secure the filter to the AC unit.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.