An air purifier has an air filter including: a filter member including a plurality of filtration regions each having a plurality of vertical pleats extending in an up-down direction and side surfaces connected to be rotatable with respect to each other; and a frame having a plurality of supports for supporting the plurality of filtration regions. Each of the plurality of supports includes a groove having a shape corresponding to any one of an upper edge and a lower edge of each of the filtration regions. Each of the filtration regions is supported by the supports by at least a part of the upper edge or the lower edge being inserted into the groove.

A clothes treatment apparatus includes: a cabinet forming a treatment space for storing clothes; a filter module having a filter portion for filtering out dust from air passing therethrough; an air flow path having a plurality of preset flow paths for directing air to be discharged into the treatment space; a fan for moving the air in the air flow path; at least one valve disposed on the air flow path; a valve actuating module for actuating the valve; and a control part for controlling the valve actuating module so as to select one of the plurality of flow paths. The plurality of flow paths include: at least one bypass flow path for directing the air to bypass the filter portion; and at least one filtering flow path for directing the air to pass through the filter portion.

An air filtering system includes a main system and a filtering module. The main system includes a main body having an air inlet, an air flow cover having an air outlet, and a primary filtering core replaceably disposed in the main body, wherein the air flow cover is detachably coupled at the main body to form a basic air filtering mode for filtering air from the air inlet to the air outlet through the primary filtering core. The filtering module is detachably coupled between the main body and the air flow cover to form an advanced air filtering mode, wherein the filtering module includes a secondary filtering core arranged for filtering the air after passing through the primary filtering core and before existing the air outlet.

An air purifying system includes a robot cleaner configured to generate map information during vacuum cleaning and at least one air purifier that is operated based on the generated map information. Air purifying is performed using updated map information acquired by the robot cleaner during cleaning. The at least one air purifier includes two portable air purifiers mounted on a base air purifier. The two portable air purifiers are configured to be lifted from the base air purifier and moved to separate indoor rooms. The base air purifier includes a controller that determines, based on the generated map information and other information, which rooms the two portable air purifiers should be placed in so that air purifying may be efficient.

Air diffusion terminal apparatus (1) for wall or ceiling (33), fluidly connectable to an air ventilation system (3), comprising: a frame (4) comprising a framework (8,9) and a through-hole (35), the framework (8,9) being configured to be installed and housed in a cavity of the wall/ceiling (33); a cartridge (5) configured to be insertable in the frame (4) according to a first direction (F) parallel to a longitudinal axis (L) of the through-hole (35) so to fill the through-hole (35) of the frame (4); said cartridge (5) comprising a plurality of housings (6) for receiving respective modules (7), said modules (7) comprising at least an air diffusion module in turn comprising deflecting blades (7A,7B,7C) or a plate (7D) provided with holes (7E) or nozzles (7F).

A coating material mist remover of the present disclosure includes: a first duct that discharges air containing coating material mist from an outflow port directed downward; a second duct having an inflow port opened in a horizontal direction; and an incinerable intermediate filter that is detachably connected between the first duct and the second duct and removes the coating material mist from the air. The coating material mist remover also includes: a first connection mechanism that can connect and separate the first duct and the intermediate filter; and a second connection mechanism that can connect and separate the second duct and the intermediate filter.

A virus elimination assembly for sterilizing air includes a base that is hollow. An intake vent is pivotally coupled to the base to direct air into the base. A canister is coupled to the base and the canister is in fluid communication with an interior of the base. A filter tray is slidably positioned in the canister and a filter is integrated to pass air therethrough. A blower tray is slidably positioned in the canister and a blower is integrated therein to blow air when the blower is turned on. A light tray is slidably positioned in the canister and a light emitter is integrated therein to eliminate viruses and bacteria. An exhaust vent is pivotally integrated into the canister to direct the air that has been sanitized by the light emitter out of the exhaust vent.

A filter assembly is provided. The filter assembly includes a plurality of filter modules each filled with activated carbon and continuously connected; and a frame to which the plurality of filter modules are fixed, wherein the plurality of filter modules are disposed at predetermined angles relative to each other.

A filter housing includes a container holding a filter element for filtering gas in the container. A lid is removably mounted on the container. A seal arrangement is between the lid and container to form a releasable seal. The seal arrangement has a container gasket and a lid gasket which are offset from each other. They can include rigid projections that are pressed into the opposing gasket.

A filter apparatus and method having a test port member in combination with a filter media. The test port member may be positioned adjacent the outer periphery of the outer peripheral frame and may be attached to a truncated portion of the filter media. One or more scrim layers may be disposed across one or more sides of the test port member and/or the truncated portion of the filter media. A plug may be inserted into a through port of the test port member.