An air purification device for use in an air management system includes a housing formed from a polymer matrix composite structure and a filter arranged within the housing. The filter is formed from a porous composite structure including a plurality of filter fibers such that air is configured to flow through the filter. Microbes within the air are configured to contact the plurality of filter fibers.

A filter arrangement for a humidifying device. The filter arrangement has: a rotatable body; a humidifying filter member arranged to be wetted with water; a guiding arrangement configured to guide water to a discharge region; and at least one discharge bucket arranged on the rotatable body. The at least one discharge bucket is configured to lift water from a tray and to discharge the water to the guiding arrangement as the rotatable body rotates in a first direction about a rotational axis. A humidifying device comprising a filter arrangement and a method for cleaning a humidifying filter member of a humidifying device are also provided.

An air conditioner includes a controller that controls a driving unit of the air conditioner. The controller includes a determination unit that determines necessity of a contaminant reduction operation of the air conditioner based on whether the air conditioner is in a non-cooling operation period, and a setting unit that sets a condensation operation condition for forming condensed water on a surface of an indoor heat exchanger of the air conditioner. The controller performs the contaminant reduction operation of the air conditioner based on a necessity determination result of the determination unit in accordance with the condensation operation condition set by the setting unit.

An information providing system provides information relating to dirt in a drain pan of an air conditioner. The information providing system is provided with a computer which is connected to a camera and a user terminal. The computer acquires image data of a target object imaged by the camera, identifies a dirty region in the image data, creates dirt-related information in which the dirty region is highlighted in the image data, and outputs the dirt-related information to the user terminal.

An air purifier and a method for controlling the same are provided. The air purifier includes a fan for suctioning air, an odor sensor for sensing a concentration of odor, a hybrid filter including activated carbon and a photocatalyst, and a light emitting diode (LED) arranged in an area where the photocatalyst included in the hybrid filter is positioned and emitting light. Identification is made as to whether the concentration of odor exceeds a first threshold value, the fan is driven to suction air to reduce the concentration of odor when the concentration of odor exceeds the first threshold value, and the LED emits light to the photocatalyst based on a concentration of carbon dioxide in the air if the sensed concentration of odor is not reduced to a second threshold value after a threshold time since driving of the fan.

Disclosed are an indoor unit and an air conditioner. The indoor unit has a chassis, a washing module, and a water blocking structure. The chassis has a condensate area and an effluent area adjacent to the condensate area and positioned above the condensate area. A portion of a bottom of the effluent area adjacent to the condensate area is recessed with a water outlet hole in communication with the condensate area. The washing module is mounted on the chassis and has a discharge pipe extending into the effluent area. The water blocking structure is arranged between the condensate area and the effluent area. A top end of the water blocking structure is connected to the washing module, and a lower end of the water blocking structure is in front of the water outlet hole to shield a part of the water outlet hole.

Disclosed are an indoor unit and an air conditioner. The indoor unit has a chassis, a washing module, and a water blocking structure. The chassis has a condensate area and an effluent area adjacent to the condensate area and positioned above the condensate area. A portion of a bottom of the effluent area adjacent to the condensate area is recessed with a water outlet hole in communication with the condensate area. The washing module is mounted on the chassis and has a discharge pipe extending into the effluent area. The water blocking structure is arranged between the condensate area and the effluent area. A top end of the water blocking structure is connected to the washing module, and a lower end of the water blocking structure is in front of the water outlet hole to shield a part of the water outlet hole.

A pass box delivering an article with respect to a clean room includes a blower provided in an upper portion of the pass box, a first door on the clean room side, a first handle provided on the clean room side and opening and closing the first door, a first handle receiving portion rotating with the first handle in the pass box, a first handle receiving seat engaging with the first handle receiving portion in the pass box, and a storage stand provided in a lower portion of the pass box. The storage stand has a slit allowing air from the blower to be exhausted from an inner portion of the pass box.

A pass box delivering an article with respect to a clean room includes a blower provided in an upper portion of the pass box, a first door on the clean room side, a first handle provided on the clean room side and opening and closing the first door, a first handle receiving portion rotating with the first handle in the pass box, a first handle receiving seat engaging with the first handle receiving portion in the pass box, and a storage stand provided in a lower portion of the pass box. The storage stand has a slit allowing air from the blower to be exhausted from an inner portion of the pass box.

Systems and methods for integrating a building management system communicatively coupled to a security subsystem via a communication network, in which the building management system determines occupancy data, with a heating, ventilation, and air conditioning subsystem that includes a scrubber unit communicatively coupled to the building management system via the communication network. The scrubber unit includes a contaminant filter that sorbs air contaminants from a surrounding environment when an elevated pressure differential is introduced across the contaminant filter; an inlet sensor that determines sensor data indicative of contaminant level present in return air received by the scrubber unit from an internal portion of the building; and scrubber control circuitry that selectively instructs the scrubber unit to operate in one of multiple regeneration modes based at least in part on the occupancy data and the sensor data to facilitate improving filtering efficiency provided by the contaminant filter during subsequent operation.