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.

An air box and methods are provided for communicating an airstream through an air filter to an air intake duct of an internal combustion engine of a vehicle. The air box generally transports air received by way of air inlet ports that mate with aerodynamic elements of the vehicle. The air is received through a conduit to an air intake duct of the engine. The air box an enclosure that is formed in a substantially rigid/solid form. A substantially transparent inspection region is disposed on a surface of the enclosure so that the air filter may be viewed and potentially accessed if desired.

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 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 structure for attaching a blocking member displaces the blocking member from an insertion position where clamping pawl parts are arranged in a notch part to a fixation position where an opening edge portion is clamped in clearances between the clamping pawl parts and a main body part of the blocking member, thereby to attach the blocking member to an attachment object member. A projecting part that projects toward the blocking member is formed around an opening. At least a part of the projecting part is a side surface projecting part that projects along an outer peripheral side of a side surface of the blocking member when the blocking member is displaced to the fixation position. At least one of the clamping pawl parts is a low-load clamping pawl part. A clearance size between the low-load clamping pawl part and a main body part of the blocking member is provided to be larger than a clearance size between another clamping pawl part and the main body part of the blocking member.

An air filter for a ventilation device of a motor vehicle is disclosed. The air filter has a planar extension along which the air filter is able to be inserted into a flow area of the ventilation device transversely relative to a flow direction and has a filter medium arranged along its planar extension. The filter medium is bordered at least in certain regions by at least one frame wall. The frame wall has at least one section which is able to be brought into engagement with guide elements of the ventilation device in order to guide the air filter during insertion into the flow area. The section is a notch on an edge of the frame wall and is formed with an undercut relative to the edge such that the air filter is able to be braced transversely relative to the insertion direction during insertion in two directions.

A carbon dioxide concentration control device (10) is provided with a control unit (15) that controls an absorption amount of carbon dioxide of a carbon dioxide absorbent (16) per unit hour, and a regeneration control unit (14) that generates the carbon dioxide absorbent (16), and a second drive energy supply unit (13) which is different from a first drive energy supply unit (11) that supplies power to the control unit (15) supplies power to the regeneration control unit (14), and thus a carbon dioxide concentration in a space is controlled to be an appropriate value for long periods of time.

An air box and methods are provided for communicating an airstream through an air filter to an air intake duct of an internal combustion engine of a vehicle. The air box generally transports air received by way of air inlet ports that mate with aerodynamic elements of the vehicle. The air is received through a conduit to an air intake duct of the engine. The air box comprises an enclosure that is formed in a substantially rigid/solid form. A substantially transparent inspection region is disposed on a surface of the enclosure so that the air filter may be viewed and potentially accessed if desired.

A filter device has a filter element with filter medium body and surrounding frame with opposed lateral faces. A filter housing has opposed wall sections with two engagement counter elements for form fit engagement of an engagement element, respectively. The engagement counter elements are grooves in the wall sections with an insertion section and a blocking section connected to the insertion section and angled thereto. The insertion section permits insertion of the engagement element along a flow direction through the filter element. When mounted, the engagement element is arranged at one of the lateral frame faces, extends away from the filter medium body, and is held in the blocking section. Hold sections are connected to the engagement elements and, when mounted, at least partially engage the filter element. A vehicle with such a filter device and a method for mounting the filter element with engagement elements are provided.

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.