Abstract: Methods, apparatus, systems, and computer-readable media are provided for employing an environment of sensor arrays at an air handling unit. Each sensor array can include one or more sensors for collecting data related to a portion of an air handling unit. Additionally, each sensor can be in communication with each other and/or each sensor array can be in communication with a remote server for processing the collected data. The collected data can be correlated in order to identify how various portions of the air handling unit are affected by other portions of the air handling unit and other systems that are external to the air handling unit. For instance, certain properties of motor and/or filter operations can be indicative of heating and/or cooling coil fouling and/or changes in air pressure of rooms served by an air handling unit.

Abstract: In the description and drawings a fiberglass product is disclosed. The fiberglass product may have one or more fiber curl layers. The fiber curl layers may have a plurality of generally sinusoidal fiber bundles therein.

Abstract: A method and apparatus for filter testing for use within an air handling system. The air handling system may include one or more scan assemblies. The scan assembly may include a track system using one or more magnetic arrays.

Abstract: A filter apparatus and method having a test port member in combination with a filter media. The test port member may be positioned adjacent the outer periphery of the outer peripheral frame and may be attached to a truncated portion of the filter media. One or more scrim layers may be disposed across one or more sides of the test port member and/or the truncated portion of the filter media. A plug may be inserted into a through port of the test port member.

Abstract: A method and apparatus for filter testing for use within an air handling system. The air handling system may include one or more scan assemblies. The scan assembly may include a track system using one or more magnetic arrays.

Abstract: 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.

Abstract: A V-bank filter apparatus and method for air filtration. The V-bank filter may include varying the downstream regions between adjacent V shaped filter elements. The V-bank filter may include a housing with one or more structural supports. The structural supports of the filter housing may include one or more through openings. The filter media elements may include one or more hinges and/or flaps.

Abstract: 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.

Abstract: A filter frame that may be reusable with filler media replacements. The filter frame may include a frame section have a first sidewall and a second sidewall along the outer periphery. The first sidewall may be at a lager perimeter than the second sidewall. A locking mechanism may releasably secure two frame sections together. The filter frame may include a filter media contained between two frame sections.

Abstract: The described embodiments relate to systems, methods, and apparatuses for collecting and testing particles emitted from a filter of a duct using an electromechanical scanning system that is contained within the duct. The electromechanical scanning system includes a stacked arrangement of ports that extend over a surface of the filter in order to collect particles that are passing through the filter. The stacked arrangement of ports is connected to a magnetic rail device that maneuvers the stacked arrangement of ports to, and between, distal ends of the filter. Control signals are sent to the magnetic rail device from a controller that is external to the housing and connected to electrodes located on a surface of the housing. The electrodes are sealed such that particles do not unintentionally escape from the duct.

Abstract: The present disclosure is directed to inventive methods, apparatus, and systems for supporting pleated filter media. Flaps of a support strip may be folded in an overlapping engagement to support the filter media in a variety of applications.

Abstract: The present disclosure is related to an air filter operation and use modification system. The system properly determines average filter resistance based upon determined air velocities in the air handling unit. Once accurate average filter resistance is determined, various energy use measurement determinations can be made for a proposed filter in the system. Such determinations can be based on estimated or desired filter energy use measurements. The system can modify the air handling unit operations to meet the proposed filter energy use measurements. Furthermore, the user will have the ability to review the range of potential operational points and then be able to select the service cycle based on the air handling unit owner's preferred preventive maintenance and budget cycles.

Abstract: An integral canister filter having multiple layers, including a prefiltration layer. The prefiltration layer may filter oil and/or water from an airflow to protect downstream components. The prefiltration layer may be treated with a water and/or oil repelling or absorbing material. The second layer may be a porous membrane filter positioned downstream of the prefiltration layer. The third layer may provide structural support for the first and/or second layers.

Abstract: An apparatus having one or more filters positioned by a connection member. The connection member orientates one or more filters at a transverse angle relative to the horizontal to drain contaminants from the filter.

Abstract: In the description and drawings a final fiberglass product is disclosed. The final fiberglass product may have a fiber curl layer, a fiber skin layer, and a fiber loft layer between the fiber curl layer and the fiber skin layer. The fiber curl layer may be on an unfiltered air entry side of the final fiberglass product and have a plurality of generally sinusoidal fiber bundles therein.

Abstract: A HEPA filter which utilizes spun bond scrim material and ePTFE membrane for use in an aseptic pharmaceutical filtration air handling system for installation and testing is provided. The installation and testing configuration includes the ePTFE filter with a low or ultra-low concentration of challenging aerosol in the upstream side of the filter along with a scanning device for determining the upstream concentration, all completed in situ within a pharmaceutical air handling system. At the downstream side of the ePTFE filter is positioned another scanner which may be a discrete particle scanner for calculating the penetration percentage of the aerosol through the filtering media of ultra-low concentrations. The system and configuration allows for exposure to ePTFE filtration media for certification by low or ultra-low concentrations of oil based challenging compounds.

Abstract: Apparatus and method related to a cartridge filter having self-regulated pleat spacing. An elastic adhesive bead is used on an outer surface of a cylindrically formed pleated filter media to maintain pleat spacing without damaging the pleats or the filter media. In this way, a cylindrical pleated filter media may be formed from a planar filter media without the need for manually spacing the pleats during or after formation into a cylinder.

Abstract: Various methods and apparatus are disclosed that relate to one or more aspects of a filter structure that may remove contaminants from a stream of fluid. In various aspects the filter structure includes a front portion having a first orientation and a rear portion having a second orientation unique from the first orientation.

Abstract: Apparatus related to an air filter and filter housing are disclosed herein. The filter housing and/or filter frame utilize heat shrinkable sealant pieces to enhance the sealing capabilities of the filter housing and/or filter frame.

Abstract: Systems and methods for generating low or ultra-low concentrations of oil-based challenging compounds for filtration media are provided. Embodiments of the generators utilize bypass air in addition to the source of challenge. A HEPA filter which utilizes spunbond scrim material and ePTFE membrane for use in an aseptic pharmaceutical filtration air handling system for installation and testing is provided. The installation and testing configuration includes the ePTFE filter with a low or ultra-low concentration of challenging aerosol in the upstream side of the filter along with a scanning device for determining the upstream concentration, all completed in situ within a pharmaceutical air handling system. At the downstream side of the ePTFE filter is positioned another scanner which may be a discrete particle counter. The system and configuration allows for exposure to ePTFE filtration media for certification by low or ultra-low concentrations of oil based challenging compounds.