A filter assembly includes a support fame, a filter media, and a conditioning device. The filter media is coupled to the support frame. The filter media has a dirty side that receives an air stream and a clean side that outputs the air stream after having been filtered by the filter media. The conditioning device is coupled to the support frame. The conditioning device is positioned downstream of the clean side of the filter media with respect to the air stream and directly contacts the clean side of the filter media.

Articles and methods involving filter media are generally provided. In certain embodiments, the filter media includes at least a first layer, a second layer, and an adhesive resin positioned between the first layer and the second layer. In some embodiments, the first layer may be a pre-filter layer or a support layer. The second layer may, for example, comprise fibers formed by a solution spinning process and/or may comprise fine fibers. In some embodiments, the adhesive resin may be present in a relatively low amount and/or may have a low glass transition temperature. The filter media as a whole may have one or more advantageous properties, including one or more of a high stiffness, a high bond strength between the first layer and the second layer, a high gamma, and/or a low increase in air resistance after being subjected to an IPA vapor discharge. The filter media may be, for example, a HEPA filter and/or an ULPA filter.

Articles and methods involving filter media are generally provided. In certain embodiments, the filter media includes at least a first layer, a second layer, and an adhesive resin positioned between the first layer and the second layer. In some embodiments, the first layer may be a pre-filter layer or a support layer. The second layer may, for example, comprise fibers formed by a solution spinning process and/or may comprise fine fibers. In some embodiments, the adhesive resin may be present in a relatively low amount and/or may have a low glass transition temperature. The filter media as a whole may have one or more advantageous properties, including one or more of a high stiffness, a high bond strength between the first layer and the second layer, a high gamma, and/or a low increase in air resistance after being subjected to an IPA vapor discharge. The filter media may be, for example, a HEPA filter and/or an ULPA filter.

A filter element has a filter media assembly extending between a first end and a second end to define a media length along a longitudinal axis. The filter media assembly defines a central opening on an upstream side and an outer radial boundary on a downstream side. A first endcap is coupled to the first end. The first endcap has a media potting structure defining an annular surface abutting the first end of the filter media assembly, an inner tubular flange extending longitudinally from the annular surface into the central opening, and an outer tubular flange extending longitudinally from the annular surface over the outer radial boundary of the first end of the filter media assembly. The first endcap has an outer circumferential sealing surface about the longitudinal axis and a shroud to obstruct fluid flow extending longitudinally from the outer circumferential sealing surface towards the second end.

An airborne pathogen extraction system that provides for continuous airborne pathogen particle extraction from a specifically targeted area in a room or a specifically targeted area proximate to a user. The pathogenic particles are filtered and/or disinfected before the air is returned proximate to the originating location, or are directed an area away from the user(s). The airborne pathogen extraction systems and methods lower the chances of contagion or infection from airborne pathogens, such as viruses.

A filter assembly is provided. The filter assembly includes a plurality of filter modules each filled with activated carbon and continuously connected; and a frame to which the plurality of filter modules are fixed, wherein the plurality of filter modules are disposed at predetermined angles relative to each other.

A filter assembly is provided. The filter assembly includes a plurality of filter modules each filled with activated carbon and continuously connected; and a frame to which the plurality of filter modules are fixed, wherein the plurality of filter modules are disposed at predetermined angles relative to each other.

The filter unit includes a filter section having a first filter and a second filter being of a pleated shape, and a frame having a pair of first frames and a pair of second frames having an adhesive layer. The filter unit is manufactured by stacking the first filter on the second filter, arranging a first support member opposite to the first frame with respect to a first fixed portion, arranging a second support member for supporting the second fixed portion opposite to the first frame with respect to the second fixed portion, fixing the first frame to the first fixed portion and the second fixed portion, and fixing the first frame to the second frame.

A filtration media pack including a plurality of layers of filter media is disclosed. The media pack includes fluted sheets and a facing sheet, with a plurality of flutes extending between the fluted sheets and the facing sheets. In an embodiment, the fluted sheet includes a plurality of protrusions that contact the facing sheet.

A filtration media pack including a plurality of layers of filter media is disclosed. The media pack includes fluted sheets and a facing sheet, with a plurality of flutes extending between the fluted sheets and the facing sheets. In an embodiment, the fluted sheet includes a plurality of protrusions that contact the facing sheet.