Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. In depicted examples, the air cleaner assemblies and components optionally use advantageous housing seal features. Methods of assembly and use are described.

A filter assembly includes a housing, a filter element, and an end cap. The housing includes an interior surface, an exterior surface, and a protrusion. The interior surface defines an interior volume. The exterior surface is opposite the interior surface. The protrusion extends from the exterior surface. The filter element is configured to be disposed at least partially in the interior volume of the housing. The end cap includes an axially-extending outer rim defining a slot configured to receive the protrusion to inhibit rotation of the end cap relative to the housing.

A filtration device may include an adapter, a filter element, and a housing. The adapter may include a collar having an upper rim and a lower rim, a plurality of locking tabs extending from the upper rim, and a plurality of snap members extending from the lower rim. The filter element may include a casing and a plurality of receptacles connected to and arranged around a first outer surface of the casing. The plurality of receptacles are configured to receive the plurality of locking tabs. The housing, which is configured to receive the filter element, includes a shell and a plurality of ramp members that are connected to a second outer surface of the shell. The plurality of ramp members are configure to engage the plurality of snap members.

The present invention discloses a combination of detachably integrated mask and a detachably integrated face shield.

Filter assemblies are described and shown. Components, features and methods of assembly and use are described. Many of the principles relate to preferred cartridge configurations for engagement with selected housings. Selected optional features described can be used to provide indication to a service provider that a proper cartridge is not positioned appropriately in the housing for use.

Improvements to filtration and vessels such as for filtration and coalescing of gas streams are shown. A filter element with a partial treated region and untreated region such as providing different surface energies or other filtration characteristics are provided. Various keying arrangements for compatibility and/or rotational locking are shown between the filtration vessel, a tubular coalescing baffle, and/or filter element. The tubular coalescing baffle also may include non-louvered pore structure, which provides for more even flow in a two stage type filtration vessel to prevent premature exiting and reduction of flow velocities along the second stage, and/or may additionally or alternatively include drainage apertures such as drain slot formed along a gravitational bottom or otherwise to facilitate additional drainage of coalesced liquid as opposed to letting such liquid be forced through fluid velocity toward the open end of the tubular baffle.

A filtration system including a housing defining an internal volume. The housing includes a housing first end, a housing second end, and a first coupling member formed in the housing. The housing first end is an open end. The housing second end is a closed end. A filter element is positioned within the internal volume of the housing. The filter element is configured to engage the first coupling member. A filter head is provided. A seal member is disposed between the housing first end and the housing second end. The seal member provides a radial seal directly between the housing and the filter head.

A round filter element has a filter medium body with a wall to be flowed through by a fluid to be purified in a radial direction relative to a longitudinal axis of the filter medium body. A circumferentially extending seal carrier is arranged at or adjacent to an end face of the filter medium body. A sealing element is supported at the seal carrier adjacent to a radial outer side of the filter medium body. A positioning element extends into the filter medium body and engages with a correlated housing-associated counter positioning element of a filter housing when the round filter element is installed in the filter housing. The seal carrier separates flow-tightly a raw side of the round filter element from a clean side of the round filter element when the round filter element is installed in the filter housing.

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 body can include a first plurality of lugs, wherein each of the first plurality of lugs has a first engagement surface disposed at a first angle that is oblique to a rotational plane of the cover. A second plurality of lugs can be provided on the cover, wherein each of the second plurality of lugs has a second engagement surface disposed at the first angle. A lock mechanism can also be provided that is disposed on the cover, wherein the lock mechanism includes a lock member axially movable between a locked position and an unlocked position to selectively secure the cover to the housing body.

A filter device for the separation of impurities from a gas, including a filter housing having a lid and a pot; a filter element installed in the pot; a top cap has an inlet duct for receiving gas to be purified, the inlet duct connects to the inlet of the lid; a positioning device configured to position the top cap in relation to the lid when mounting the pot on the lid, and on the other hand with pressure device configured to press the entrance of the inlet duct against the inlet of the lid after mounting the pot on the lid, whereby the positioning device and the pressure device are designed in such a way that the positioning device come into action earlier than the pressure device during the mounting of the pot on the lid.