A connection arrangement for fixing a lid to a filter housing and to a filter element, by which an insertion opening in the filter housing can be closed, includes a holding element on the filter element and a locking element on the lid. The holding element can be fixed by a contact surface for contacting the locking element in a recess of the filter housing. The holding element has a latching geometry with which it can be latched in the recess of the filter housing. The locking element is a shaft with a bolt rod and a handle part. The shaft is guided through the lid such that the lid and the filter element in the latching position can, by the bolt rod and a contact surface formed as a ramp on the holding element, which engage with one another by turning the locking element, be spanned against each other.

Methods and systems described perform air cleaning and/or sanitization in a heating, ventilation, air conditioning, and/or refrigeration (HVACR) system by detecting a concentration of airborne contaminants in a space serviced by the HVACR system. The detected concentration of airborne contaminants is determined whether it exceeds a threshold relative to a capacity of a first air cleaner. When the detected concentration of airborne contaminants exceeds the threshold, a second air cleaner is selected and enabled to be activated in the space. When the detected concentration of airborne contaminants does not exceed the threshold, the first air cleaner is selected and enabled to be activated in the space. The first air cleaner has a cleaning material different from the second air cleaner, and the first air cleaner, relative to the second air cleaner, treats the space at a lower concentration of airborne contaminants. The second air cleaner includes specifically designed cleaner modules.

An air purifier having a shape and structure suitable for application to a vehicle interior are disclosed where the air purifier for a vehicle, includes an exterior housing having an open outlet configured to discharge purified air, a blower fan configured to rotate inside the exterior housing, to suction air into the exterior housing, and to blow the purified air to the outlet, a filter configured to purify the air suctioned into the exterior housing a fan support configured to support the blower fan, fixe the blower fan to the exterior housing, and having a plurality of holes through which air purified by the filter moves to the blower fan, and a mesh cover fixed at a position in which the air is suctioned into the exterior housing, the mesh cover having a plurality of holes formed therein and having a filter mount on which the filter is mounted.

A vehicle cabin filter assembly comprising a filter module and a further filter module positioned downstream of the filter module. Each filter module comprises one or more filter elements. The filter elements of the filter module are pleated at a first pleat pitch and comprise a gas filter element. The filter elements of the further filter module are pleated at a second pleat pitch and comprise a particulate filter element. And the second pleat pitch is smaller than the first pleat pitch.

A cabin air filter is provided with a filter medium and a filter element frame that frames the filter medium and is configured to attach the cabin air filter to a filter housing. The filter element frame is provided with at least one engagement element configured to engage pivotably at least one receiving element of the filter housing for pivoting the cabin air filter relative to the filter housing about a pivot axis. The filter element frame also has at least one snap hook that locks with at least one locking element of the filter housing for blocking pivoting of the cabin air filter relative to the filter housing at least in a first direction about the pivot axis.

A fastening module for connecting a filter system to an arched connecting surface with openings for a fluid has a connecting housing connectable in fluid communication to the filter system. Rigid individual channel pieces are arranged in the connecting housing and channels extend in the channel pieces. The channels correspond with the openings in the arched connecting surface. The channel pieces have connecting flanges to be connected to the openings in the arched connecting surface. The channel pieces are connected by flexible connecting regions with each other; with the connecting housing; or with each other and with the connecting housing. The fastening module is connected in fluid communication to the inlet region or outlet region of the filter system. A filter module for the filter system has substantially free intake across its cross section and enables an intake manifold-type distribution of a volume flow passing through the filter element.

A vehicle component housing, such as for an air filtration assembly, includes a first shell having a mount defining a retention feature, and a second shell having a flange. A fastener has a hooked region rotatably supported by the mount and configured to selectively mate with the retention feature to retain the fastener in a disengaged position. The fastener has a locking member configured to mate with the flange to retain the fastener in an engaged position. The fastener may be a spring clip fastener.

A housing for a motor vehicle comprises at least one opening and at least one cap which comprises a seal on an inner side such that the seal is disposed within the housing of the air-conditioning device when the cap caps the opening.

A tray for holding a cabin air filter that filters airflow entering a vehicle passenger cabin. The tray includes a frame configured to hold the cabin air filter. A retention member includes a first end attached to the frame and a second end configured to be anchored at a mounting location in a vehicle. When the frame is moved away from the mounting location, the retention member is tensioned to (i) guide and pull the flexible frame towards the mounting location and/or (ii) hold the flexible frame at the mounting location.

An air conditioning device for a vehicle (1) includes: a housing (2) having an opening (2M); a blower (4) having a fan (9) accommodated within the housing and rotating about a rotation axis parallel to a first axis; a filter section (5) which is disposed between a gas inlet (7) and the opening and through which gas taken in from the gas inlet and flowing into the opening passes; and a support member (6) disposed between the blower and the filter section so as to be located at least partially at the opening, and supporting the filter section. The support member has a rib portion (61) extending in a longitudinal direction in a predetermined plane orthogonal to the first axis, and a sticking-out portion (62) sticking out from the rib portion in a transverse direction in the predetermined plane orthogonal to the longitudinal direction.