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.

A method for filtering a gas includes delivering a gas into a compartment of a gas filter assembly; applying a partial vacuum to the gas filter assembly so that the partial vacuum assists in drawing the gas through a porous filter body of the gas filter assembly that is at least partially disposed within the compartment of the gas filter assembly; and regulating the application of the partial vacuum based on a pressure reading of the gas upstream or downstream of the gas filter assembly.

The present teachings provide for a housing for a panel filter, the housing including a main body, a plurality of first vanes, and a plurality of second vanes. The main body can define a chamber and a central aperture. The central aperture can extend through the main body and can be in fluid communication with the chamber. The plurality of first vanes can be disposed within the chamber and circumferentially spaced about the central aperture. Each first vane can extend radially outward from the central aperture a first distance. The plurality of second vanes can be disposed within the chamber and can be circumferentially spaced about the central aperture. Each second vane can extend radially outward from the central aperture a second distance that is less than the first distance.

A filter element for filtration of an air stream includes: a folded filter medium forming a bellows, the filter medium being constructed at least in two layers and having a particle filter layer, an electrically conductive filter layer, and at least one edge band, the at least one edge band being connected to at least one outer side of the bellows. At least one further edge band is connected to an outer side of the bellows. The at least one further edge band is electrically conductive. The at least one further edge band forms a pocket open towards one side.

The invention pertains to a filter retaining assembly which is rigid and self-supportive without requiring any additional structural reinforcement. The design maximizes the filter surface to be used for air filtration and increases the filtration efficiency. The invention is also designed to minimize the filter assembly size to fit into the valuable space when the air handling unit physical dimension is constrained. The invention uses integral construction methods to save assembly time and labor by eliminating the need of using alignment holes and fastening each individual frame to construct a conventional filter retaining assembly. The proposed method maintains flexibility of scaling to any filter size and quantity.

Present embodiments relate to an air filter adapter for use with open style engine air filters. More particularly, but without limitation, present embodiments relate to a filter adapter having a hydrocarbon trap positioned within the adapter.

A filter element having a longitudinal center axis for a fresh air system of an internal combustion engine may include a first plate filter body composed of a pleated filter material and a separate second plate filter body composed of a pleated filter material. The filter element may include first wall body and a second wall body, and a first end body and a second end body. The first wall body, the second wall body, the first end body and the second end body may be connected to the first plate body and the second plate filter body to define an inner space. At least one of the first plate filter body and the second plate filter body may include a curvature projecting to the interior space in a profile extending transversely to a longitudinal direction with respect to the longitudinal center axis.

Air cleaner and preferred components for an air cleaner are provided. In certain arrangements, a band is mounted to the media pack, surrounding the media. Also, the cartridge is non-circular and includes a seal thereon.

Disclosed is an air purifier, which is installed outside, and rotates in a blowing direction of wind, and purifies fine dust, yellow dust, heavy metal, and the like existing in the air through a filter. The air purifier includes: a case, which has one side formed with an air inlet, the other side formed with an air outlet, and a lower surface formed with a coupling recess; a filter, which is mounted to the other side of the case; a support part, which is coupled to the coupling recess formed on the lower surface of the case to support the case, and includes a rotating body connected so that the case rotates; and a rudder, which is connected to an upper surface of the case and adjusts a direction so that the case rotates according to a wind direction.

The disclosure relates to an air filtering apparatus (1) configured to provide intake air to an engine, said apparatus comprising: a filter chamber (2) comprising an air inlet opening (3), and an air outlet opening (4); a weather protection hood (5) arranged on the air inlet side of the filter chamber, said weather protection hood having an air intake opening (6) facing downward and an outlet opening (7) being connected to the air inlet opening (3) of the filter chamber; a pulse filter arrangement (8) comprising one or more pulse filters (9); a static filter arrangement (10) located at the air outlet opening (4); where the pulse filter arrangement (8) is arranged inside the weather protection hood (5) and in that a maintenance space (11) is provided in the filter chamber (2) on a downstream side of the pulse filter arrangement (8), through which the filters (9) of the pulse filter arrangement can be replaced.