A sorption device for filtering evaporation emissions from a fuel tank, includes a vessel, with a first opening connected to an air removal path of the fuel tank and a second opening opening to atmosphere, a middle annular space between a radial outer circumferential boundary of the middle annular space and a radial inner circumferential boundary thereof radially inwardly spaced apart from the outer boundary, a first annular space formed between a radial inner surface of a fluid-tight circumferential outer shell of the vessel, the radial outer boundary being radially inwardly spaced from the inner surface, a sorbent material arranged in the middle annular space, and evaporation emissions from the fuel tank are guided through the first opening into the first annular space, through the sorbent material into a central space of the vessel in the radial direction, and through the second opening to atmosphere or another sorption device.

An air cleaner includes an intake filter seated on an air cleaner body, an air cleaner cover spaced apart from the intake filter and coupled to the air cleaner body, and a cover rigidity reinforcement member detachably coupled to the intake filter and configured to restrict displacement toward the intake filter. The intake filter includes a non-woven fabric configured to filter foreign matters of introduced outside air, and a filter frame surrounding and fixing a circumference of the non-woven fabric.

An air cleaner includes an intake filter seated on an air cleaner body, an air cleaner cover spaced apart from the intake filter and coupled to the air cleaner body, and a cover rigidity reinforcement member detachably coupled to the intake filter and configured to restrict displacement toward the intake filter. The intake filter includes a non-woven fabric configured to filter foreign matters of introduced outside air, and a filter frame surrounding and fixing a circumference of the non-woven fabric.

In one aspect, a modular filter assembly for filtering fluid that flows in a flow direction therethrough is disclosed. The assembly includes a first housing section having a first filter element; a second housing section having a second filter element; and a connector disposed between the first and second housing sections. A housing includes the first housing section, the connector, and the second housing section. The flow direction is through the first and second filter elements in series.

In one aspect, a modular filter assembly for filtering fluid that flows in a flow direction therethrough is disclosed. The assembly includes a first housing section having a first filter element; a second housing section having a second filter element; and a connector disposed between the first and second housing sections. A housing includes the first housing section, the connector, and the second housing section. The flow direction is through the first and second filter elements in series.

The active air purification device of the present invention includes: a first filter that is horizontally blocked on the entire flow channel and rotates, so it will actively increase the probability of air colliding with the filter. Moreover, the plural light source panels in the present invention are arranged on the flow channel to increase the range of light irradiation.

The active air purification device of the present invention includes: a first filter that is horizontally blocked on the entire flow channel and rotates, so it will actively increase the probability of air colliding with the filter. Moreover, the plural light source panels in the present invention are arranged on the flow channel to increase the range of light irradiation.

A filter section of a heating, ventilation, and air conditioning (HVAC) system includes a plurality of filters arranged in series relative to a flow path of air through the filter section. The plurality of filters includes at least one movable filter transformable between an extended position arranged within the flow path of air and a retracted position removed from the flow path of air. At least one movement mechanism is operably coupled to the at least one movable filter to transform the at least one movable filter between the extended position and the retracted position.

An air cleaner assembly is disclosed. In one aspect, the air cleaner assembly includes a housing defining an inlet and an outlet, and including an access opening between the inlet and outlet. The air cleaner also includes a filter cartridge received within the housing and covering the access opening. The air cleaner also includes a lock mechanism. The lock mechanism is movable between an unlocked position in which the filter cartridge can be installed and removed from the housing and a locked position in which the filter cartridge is secured within the housing. The filter cartridge and lock mechanism include interacting features allowing the lock mechanism to be moved from the unlocked position to the locked position only when the filter cartridge is installed within the housing.

An air cleaner assembly is disclosed. In one aspect, the air cleaner assembly includes a housing defining an inlet and an outlet, and including an access opening between the inlet and outlet. The air cleaner also includes a filter cartridge received within the housing and covering the access opening. The air cleaner also includes a lock mechanism. The lock mechanism is movable between an unlocked position in which the filter cartridge can be installed and removed from the housing and a locked position in which the filter cartridge is secured within the housing. The filter cartridge and lock mechanism include interacting features allowing the lock mechanism to be moved from the unlocked position to the locked position only when the filter cartridge is installed within the housing.