A room air purifier has a body with a frame at least partially defining an interior chamber and an opening to the chamber. A purification mechanism in the chamber includes one or more filters and one or more blowers. A panel is configured to removably mount to the body and cover the opening to the chamber. A base mounted to the body, and each leg of a set of legs is mounted to the base. A nonwoven fabric portion covers at least part of the body. The blower when activated generates an inflow through the nonwoven fabric portion and a filter, and an outflow though the body, all while hidden from view in what to an observer looks like an article of furniture.

An adjustable filter track system a filter track having a recess configured to receive a filter, and a frame having a first coupling feature configured to couple to the filter track in a first configuration and a second coupling feature configured to couple to the filter track in a second configuration, where the filter track and the frame are configured to hold the filter in place within the recess, and where the filter track is adjustable between the first configuration and the second configuration to accommodate different thicknesses of the filter.

A filter holding frame that may be used agricultural environments. The filter holding frame may include a plurality of interconnecting members with an upstream hemmed edge and downstream opposing flanges. The opposing flanges of the members may define a sealing face configured for a plurality of air filters. The members of the outer periphery of the filter holding frame may include the mounting surface and the sealing face.

A filter holding frame that may be used agricultural environments. The filter holding frame may include a plurality of interconnecting members with an upstream hemmed edge and downstream opposing flanges. The opposing flanges of the members may define a sealing face configured for a plurality of air filters. The members of the outer periphery of the filter holding frame may include the mounting surface and the sealing face.

An air cleaner assembly including a tray including two cleat receptacles spaced apart from one another at a back side of the assembly and a cover including two cleats at the back side, each of the two cleats adapted to seat within one of the two cleat receptacles. The assembly further includes a mounting bracket coupled to the tray, between the two cleat receptacles. The mounting bracket includes a guide rib extending outward from the mounting bracket, toward the cover.

A filter element is provided that is preferably a side entry air filter having an air filter media pack, a housing seal and a frame that has a clamping projection, a pivot projection and/or guide members. The clamping projection can define a non-linear bearing surface that may be chevron shaped to provide for interface and potential alignment benefits. The housing seal may be a wave seal that undulates.

An air purifier including a body including a suction port and a discharge port disposed on opposing surfaces thereof, and having an inner space through which air flows from the suction port to the discharge port, a fan disposed in the inner space and having a side surface separated from an inner wall of the body, at least one light source module disposed in the inner space to emit UV light, a power controller mounted on the inner wall and connected to a power source to supply electric power to the light source module, a cover mounted on the inner wall to cover the power controller, and at least one filter disposed in the inner space of the body, in which the cover includes a tilted air flow guide facet to guide tilted to allow air suctioned through the suction port toward the filter.

A vertically oriented dust collector configured to filter dry particulate matter from an air stream comprises a housing containing at least one cartridge. Each cartridge comprises a filter pan having an opening and a filter incorporated into the opening. The housing further comprises at least one pair of rails oriented parallel to each other within the housing onto which each cartridge is mounted. Each rail is U-shaped with the opening of the U-shape oriented towards each other such that each pair of rails is configured to receive one filter pan between them.

An air filtering device for indicating when to replace the internal filter of an HVAC system. The air filtering device includes a frame having a plurality of sidewalls each having an upper end and a lower end. Each sidewall contains a plurality of slits that cycle air therethrough. A filter member is affixed to the upper end of the plurality of sidewalls, wherein the upper end containing the filter member is closed and the lower end is opened. Magnetic fasteners are affixed to the lower end of the plurality of sidewalls, wherein the magnetic fasteners removably secure to an outer perimeter of a return vent, such that the filter member overlays the grill of the return vent. In an alternate embodiment, a magnetic support member is affixed to a lower surface of the filter member at an equidistance from opposing sidewalls to prevent the filter member from touching the grill.

The disclosed technology relates to air filters and filter assemblies for filtering particulates from air, and more particularly to for filtering paint particulates from air. The disclosed technology can include a filter support frame having a plurality of air filter receptacle shelves configured to support a plurality of air filter boxes, a tray receptacle configured to receive a removable tray, an inlet configured to receive a mixture of air and particulates and channel a mixture of air and particulates across the removable tray toward the plurality of air filter boxes, an outlet configured to receive filtered air from the plurality of air filter boxes and channel the filtered air out of the filter support frame, and a base configured to support a removable plenum. The removable tray can be configured to collect particulates.