An air cleaner assembly is disclosed, along with related methods. In one aspect, the air cleaner assembly has a housing including a housing body and a removable cover that together define an interior volume for holding a filter cartridge. The housing can include a first part of a first connection arrangement. The air filter cartridge can include a second part of the first connection arrangement. In one aspect, the first and second parts can be secured together place the air filter cartridge in a latched position by moving the air filter cartridge in a first direction. In one aspect, the first and second parts can be disconnected from each other to place the air filter cartridge in an unlatched position by moving the air filter cartridge in the first direction. The air cleaner assembly can include a second connection arrangement securing the air filter cartridge to the housing cover such that the housing body and housing cover are secured together.

The disclosure relates to a filter assembly (16) comprising a frame (6) comprising a frame part (6.1) having a top side (7a), a bottom side (7d), inner edges (7c) defining an aperture (26) and outer edges (7b) forming an outer perimeter of the frame part (6.1), and a bag-like insert (11) comprising filter material and having an open upper portion (14) and at least one closed bottom portion. The insert (11) is fitted into the aperture (26) of the frame (6) with the open upper portion (14) bent over the frame part (6.1) to cover the top side (7a), the outer edges (7b) and at least part of the bottom side (7d) of the frame part (6.1). The upper portion (14) of the insert (11), which is bent over the frame (6), comprises a stretch region (27) made of stretchable material. The insert (11) is fastened to the frame (6) by a pressing force generated by the stretch region (27) against the frame (6).

A laundry appliance includes a cabinet defining an interior volume and a housing mounted within the interior volume of the cabinet. The laundry appliance also includes an air filter assembly positioned in the housing. The air filter assembly includes a shell, a sealing member on a face of the shell, and a biasing element configured to bias the shell into sealing engagement with the housing.

Filter apparatus (6) in particular passenger compartment filter apparatus, for example for a motor vehicle (1), comprising a filter element (8) having a filter medium body (9) and a frame (10) surrounding the filter medium body (9), wherein the frame (10) features opposite lateral surfaces (11, 12), a plurality of engagement elements (22a to 22d), and a filter housing (7) featuring, on two opposing wall sections (24, 25), in each case two engagement counter elements (28a to 28d) in which in each case one of the plurality of engagement elements (22a to 22d) can be accommodated in a positive fitting manner, wherein the engagement counter elements (28a to 28d) in each case are designed as a groove in the respective wall section (24, 25) of the filter housing (7) and feature: an insertion section (31) which, when the filter element (8) is mounted in the filter housing (7), permits an insertion movement of the respective engagement element (22a to 22d) substantially along the throughflow direction (L), and a locking section (32) connected to the insertion section (31) and angled with respect to the insertion section (31), wherein a respective engagement element (22a to 22d) is disposed on a respective lateral surface (11, 12) of the filter element (8) when the filter element (8) is mounted in the filter housing (7), extends away from the filter medium body (9), and is held in a respective locking section (32).

Various environments exhibit undesirable air conditions, as may relate to particulates, odors, gas, vapors and/or airborne pathogens. For instance, public spaces such as hotel rooms, hospital rooms, apartments, assisted living homes and others may be subjected to such conditions. Existing air movement equipment, which may include heating, ventilating and air conditioning (HVAC) type equipment, may provide inadequate filtering capabilities. Certain applications involve filtering air provided by a room or area-specific heating, ventilating and/or air conditioning system. As a particular example, hotel and motel rooms are often heated, ventilated and cooled by a room-specific system. Such systems may utilize, for example, a ventilation mechanism that conveys air for heating or cooling the air in a fresh-air or recirculation mode, or simply for bringing fresh air in from outside the room. These room-specific systems often use filters in some manner. However, these filters are susceptible to damage and accumulation of dirt, bacteria and other undesirable contaminants. These and other matters have presented challenges to the use and implementation of filters for a variety of applications.

An air cleaner including a first housing including a first suction port and a first discharge port; a first fan inside the first housing; a coupling duct on an upper portion of the first housing; a second housing including a second suction port and a second discharge port; a second fan inside the second housing; and a coupling base on a lower portion of the second housing and including a guide surface sloping outwardly in an upward direction, wherein the coupling base is separably couplable to the coupling duct. When the coupling base and coupling duct are coupled, a portion of air discharged through the first discharge port is guided by the guide surface and discharged outside of the second housing, and when the coupling base and coupling duct are separated, air is guided by the guide surface into the second housing.

A filter system has a primary filter element and a secondary filter element arranged in a housing between fluid inlet and fluid outlet. The secondary filter element is arranged inside the primary filter element. The primary and secondary filter elements are flowed through sequentially by a fluid to be filtered. The secondary filter element contains an adsorption agent and has a coupling device. The housing has a coupling element at the fluid outlet for coupling to the coupling device. The secondary filter element has a filter medium body which extends along a longitudinal axis and surrounds a hollow interior. The coupling device is arranged at an open end of the filter medium body and configured to be coupled rotationally fixed to the primary filter element. The coupling device has a thread for engaging a thread of the coupling element of the housing complementary to the thread of the coupling device.