A filter element is provided. The filter element includes a filter media pack including an outer surface. The outer surface extending between a first flow face and a second flow face. The filter element also includes a polymeric coating applied to the outer surface of the filter media pack, wherein the polymeric coating is not a molded structure. In embodiments, the polymeric coating covers at least 25% of a span between the first flow face and the second flow face and has an average thickness of between 0.005 and 0.100 in. In other embodiments, the polymeric coating has a surface roughness of at least 50 pin to provide an outer gripping surface. A method and system for applying the polymeric coating to the filter element are also provided.

A filter element for an air filtration device of a motor vehicle includes a frame where the frame has an elastically deformable front wall which extends perpendicularly to an insertion direction of the filter element in a receiving chamber of a housing of the air filtration device. A fastening element is disposed on the frame where a lid of the air filtration device is fixable on the fastening element and where the lid is configured for closing the receiving chamber. An insertion bevel is formed on the frame wherein via the insertion bevel the front wall can be brought into an elastically deformed state during an insertion of the filter element into the receiving chamber. An inherently rigid component is mounted on the frame in an area of the front wall where the fastening element is formed integrally with the component and the component has the insertion bevel.

An air purifying system may include a main air purifier that has a flat upper surface configured to support at least two cylindrical portable air purifiers. Each of the main and portable air purifiers may have a fan to suction air and a filter to filter suctioned air. The upper surface of the main air purifier may include a seating groove, an elastic member provided in the seating groove, and a seating plate resting on top of the elastic member. When a portable air purifier is seated on the seating groove, the elastic member may be compressed and the seating plate may be lowered such that the portable air purifier may be supported within an inner wall of the seating groove. When the portable air purifier is removed from the seating groove, the elastic member may expand and raise the seating plate back to an initial position.

An apparatus for safely enabling air filtering by temporarily joining a box fan to a replaceable air filter includes: (a) an air chamber frame with a rear portion that is configured to accommodate the replaceable air filter, (b) a frame stabilizing means that includes a front mounting platform which is configured to temporarily hold a box fan that is oriented to pull air through the filter, (c) a gasket that is configured to attach to the frame's front surface and minimize air flow around the gasket and into the frame, (d) a vent door located in the frame and configured to open to allow air to enter the frame's interior region when the filter is clogged, (e) an alarm mechanism attached to the vent door and configured to provide a signal when the door is been opened, and (f) an alarm device configured to receive the alarm mechanism's signal and provide an alarm that the air filter needs replacement.

Proposed is a vehicle air conditioner, which performs cooling and heating by supplying cold air and hot air in an interior of the vehicle. The vehicle air conditioner includes an intake unit installed at an engine room and configured to suction and blows internal and external air to the interior, a heat exchanger unit configured to cool or heat and supply air blown from the intake unit, a case cover installed on an outer surface of the intake unit to cover the intake unit, and a case soundproofing member installed between an intake case of the intake unit and the case cover and configured to block noise that is transmitted to the intake case from the outside of the case cover.

An apparatus for safely enabling air filtering by temporarily joining a box fan to a replaceable air filter includes: (a) an air chamber frame with a rear portion that is configured to accommodate the replaceable air filter, (b) a frame stabilizing means that includes a front mounting platform which is configured to temporarily hold a box fan that is oriented to pull air through the filter, (c) a gasket that is configured to attach to the frame's front surface and minimize air flow around the gasket and into the frame, (d) a vent door located in the frame and configured to open to allow air to enter the frame's interior region when the filter is clogged, (e) an alarm mechanism attached to the vent door and configured to provide a signal when the door is been opened, and (f) an alarm device configured to receive the alarm mechanism's signal and provide an alarm that the air filter needs replacement.

A filter for in-line or inlet applications. The filter may include a spindle for supporting a filter element. In some embodiments, the spindle may be fixedly attached to a filter cap or filter body. The filter may be used as an in-line filter with a hose or tube on the inlet and outlet ports of the filter cap and filter body. In addition, or alternatively, a filter consistent with the present disclosure may be provided with a splash cap that allows use of the filter as a protected inlet for fluid flow. When used as an inlet filter, fluid may enter the filter through the splash cap and exit the filter through hose or tube coupled to the filter body. Both uses allow for serviceability.

A filter element assembly (10) is disclosed comprising: a filter element (12) for location in a housing (4) of a filter (2), comprising a wall (16) of a filtration medium which defines a hollow space (18), for a gas stream to flow from the space through the wall, the filtration medium including a filtration layer (20), and a drainage layer (22) located outside the filtration layer, first (24) and second (26) end caps at opposite ends of the wall, one including a port (28) for a gas stream which communicates with the space; and a drainage promoter (14) comprising a fin (46) which can be fitted to the filter element so that it extends along the filter element substantially an entire distance between the first and second end caps, the fin compressing the drainage layer along its length to promote drainage of liquid which has collected in the drainage layer.

A filter element including a filter media, an end cap, and a baffle. The filter media is configured to be secured within a housing. The housing includes an inlet configured to accept a fluid for filtering and the filter media including a circumferential outer surface. The end cap is positioned at and coupled to one end of the filter media. The baffle is positioned relative to the filter media at a position such that, when the filter element is correctly installed within the housing, the baffle is proximate the inlet of the housing. The baffle extends around only a portion of the circumferential outer surface of the filter media in a radial direction.

A frame for a foldable and disposable air filter media is disclosed. The frame has a frame base and a frame cover having a size to overlap the air filter media. The frame cover is attached to the frame base by hinges allowing movement of the frame cover between an open position and a closed latched position. The closed frame holds the air filter media between the frame base and frame cover when in the closed position. The frame base includes an air flow monitoring system with an air pressure differential sensor to determine when the filter needs to be replaced. The frame also has capability to hold additional sensors for monitoring environmental conditions. A processor and memory enable collection and storage of sensed data. A communication module on the frame communicates air filter media change requirement to external devices including hand-held devices or a cloud server.