Various embodiments provide for a filter assembly. The filter assembly includes a filter housing, a filter element, and a cover. The cover includes a first cover end and a second cover end disposed axially away from the first cover end. A second coupling member is adjacent to the second cover end. The second coupling member is configured to engage a first coupling member to couple the cover and the filter housing. A biasing member is coupled to the first cover end. An interface plate is configured to press against a first endplate of the filter element to secure the engagement of a first engagement portion of a filter seal member of the filter element and a second engagement portion of a housing seal member of the filter housing.

A filter housing has a first housing part with a first rim section and a second housing part with a second rim section. The housing parts can be joined and separated from each other in axial mounting direction and define a housing interior for a filter element provided with a circumferentially extending sealing element. The first and second rim sections form a receiving area in which the sealing element is seal-tightly clamped radially between the first and second rim sections when the housing parts are joined in the mounted state. A snap connecting device axially braces the first and second housing parts relative to each other. The snap connecting device is formed integrally on the first and second housing parts such that a clamping force applied by the first and second rim sections on the sealing element in radial direction is decoupled from the snap connecting device.

A filter housing includes a first end, an opposite second end and a peripheral side wall, all defining, in a combination with each other, a hollow interior of the housing. An air inlet is provided adjacent the first end and an air outlet is provided in the second end. The air inlet and air outlet are in open communication with the hollow interior. One or more openings are provided through the second end, being disposed between the air outlet and the peripheral side wall. A filter cleaning apparatus includes the filter housing, a hollow filter within the hollow interior and a nozzle within the hollow filter. The nozzle is designed to purge contaminates from the filter with pressurized fluid supply. The contaminates can be removed through one or more openings. The apparatus can be used as an air intake pre-cleaner or as a main air filter for internal combustion engine.

An air purifier comprising a main unit, a base assembly below the main unit, a filter screen assembly inside the main unit and an air supply device above the filter screen assembly, wherein the base assembly comprises a carrier part on which the filter screen assembly is provided and a lifting part that is located below the carrier part and abuts the carrier part. The lifting part comprises a pull-push part and a lifting assembly configured such that when the pull-push part makes a translation in a first direction, the lifting assembly controls the carrier part to descend and separate the filter screen assembly from the air supply device, and when the pull-push part makes a translation in a second direction opposite the first direction, the lifting assembly controls the carrier part to rise and achieve a sealed connection between the filter screen assembly and the air supply device.

An air cleaner assembly includes a housing and a removable cover. A filter element is removably positioned in the housing. A two-part mating catch assembly includes a first part that is secured to the cover and a second part that is on one of the housing and the filter element. The first part and second part are positioned to releasable, mate when the filter element is operably mounted within the housing

An upright two-stage dust collector includes a base unit, a suction blower unit, a filter unit and a dust collecting unit. The suction blower unit has a suction blower body. The filter unit includes a filter body, a coarse particle dust filter cartridge disposed in the filter body, and a fine particle dust filter element disposed in the coarse particle dust filter cartridge. The fine particle dust filter element is coaxially inserted in the coarse particle dust filter cartridge. The air after the first dust collection is filtered by the fine particle dust filter element to perform the second dust collection. Through the combination of the above units, in addition to a two-stage dust collecting effect, the dust collector occupies less space and can be used conveniently.

An apparatus and a method are provided for an air filter configured to be mounted onto air inlets of turbochargers and superchargers. The air filter comprises a proximal base including an inlet receiver configured to receive an air inlet, a clamp to secure the air inlet within the inlet receiver, and a first opening aligned with a screw mechanism of the clamp. A filter medium fastened to the proximal base is configured to remove particulate matter and other contaminates from an incoming air stream. A distal end cap fastened to the filter medium comprises a second opening aligned with the first opening. A conduit within an interior cavity of the air filter is disposed between the first opening and the second opening, facilitating tightening and loosening the clamp by extending an appropriate tool through the interior cavity so as to engage the screw mechanism of the clamp.

An extraction arm for an extraction device includes a suction pipe and a suction head and defines a suction path that extends from an extraction region in the surroundings of the suction head through the suction pipe to the extraction device. The extraction arm includes an exchangeable filter which is arranged within the suction path. The filter is located in a filter housing which has a main body and a closable cover. The filter is exchangeable, which makes it very easy to prepare the extraction arm for a new application. Since the filter is arranged in front of the suction pipe, the suction pipe remains clean. The filter can easily be changed, whereby disinfection or cleaning of the suction pipe is not necessary.

The present disclosure provides methods and apparatus to for user customizable configurations and replacement of a heating, ventilation and air conditioning filter media and frames. A media filter media may be combined with a media frame according to user specifications. One filter media or combinations of multiple filter media may be chosen by a user to create custom filter configurations. Filter media may be separated from the media frame and disposed of in a manner generally more convenient than traditional HVAC filter replacement.

An extraction arm for an extraction device includes a suction pipe and a suction head and defines a suction path that extends from an extraction region in the surroundings of the suction head through the suction pipe to the extraction device. The extraction arm includes an exchangeable filter which is arranged within the suction path. The filter is located in a filter housing which has a main body and a closable cover. The filter is exchangeable, which makes it very easy to prepare the extraction arm for a new application. Since the filter is arranged in front of the suction pipe, the suction pipe remains clean. The filter can easily be changed, whereby disinfection or cleaning of the suction pipe is not necessary.