Abstract: A dynamic and noninvasive method of monitoring the adhesion and proliferation of biological cells through multimode operation (acoustic and optical) using a ZnO nanostructure-modified quartz crystal microbalance (ZnOnano-QCM) biosensor is disclosed.

Abstract: An integrated air handling system having a make-up air system that treats outside air and a recirculating system that mixes the treated outside air with building return air. The make-up air system may include a filter, a dehumidifier, a humidifier, a combination of a dehumidifier and a humidifier, and/or an exhaust fan. The mixed air is supplied to a structure.

Abstract: A filter assembly including a rectangular inlet frame having a rectangular inlet opening to receive a primary filter and optional a prefilter. The filter assembly may include a rectangular outlet frame and a housing body that is collapsible to have a flattened shipping state and an erect state. The rectangular inlet frame may also be used as a housing by itself to support and house primary filters and prefilters. A gridwork including one or more grid dividers may be used in the rectangular inlet frame to provide 2 or more openings for receipt of filters.

Abstract: A non-V bank filter for an animal confinement application such as for filtering out the porcine reproductive and respiratory syndrome virus (PRRSV) is provided. The filter may be a deep pleat of synthetic filter media with at least a MERV 14 rating and efficiency sufficient to filter out the PRRSV in high air flow applications. The media may be embossed and have spacers to provide for structural support and open filter structure for airflow. The filter can occupy less space and in some embodiments ½ or even less space than a corresponding V-Bank filter with comparable performance.

Abstract: A filter assembly including a rectangular inlet frame having a rectangular inlet opening, a rectangular outlet frame, a housing body being collapsible to have a flattened shipping state and an erect state, the collapsible housing body in the erect state being rectangular and interposed between the rectangular inlet frame and the rectangular outlet frame in an assembled state, and at least one filter having filter media installed in the rectangular inlet opening in generally sealing relation thereto and projecting from the inlet frame toward the outlet frame in the assembled state.

Abstract: An air filter system and an air filter therefor are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. The gap between the door edges and the door frame and the door threshold region has an air flow permitting region in at least a portion of the gap. An air filter is mounted to extend substantially across the air flow permitting region.

Abstract: A work cell assembly such as welding cell assembly and a method for assembling the same is provided. The work cell has a perimeter wall including an upper wall edge defining an open top. A fluid filtration unit draws in fluid from the work cell and removes contaminants. A fluid moving device including an air blade assembly adjacent the upper wall edge and an inlet adjacent the upper wall edge and spaced downstream from the air blade assembly establish therebetween a sheet-like fluid barrier extending across the open top. The fluid barrier is defined by a continuous flow of fluid traveling across the open top for entraining the contaminant and creating a ceiling effect across the open top to prevent escape of the contaminant from the work cell through the open top. The fluid barrier has a narrow vertical extent to prevent disturbance of the fluid in the work cell.

Abstract: An improved system and method for purging a microenvironment to desired levels of relative humidity, oxygen, or particulates through the implementation of a purge gas delivery apparatus and method that provides even distribution of the purging gas within the microenvironment. A substrate container has a tower therein with a fluid flow passageway extending the length of the tower. Apertures with porous media between the aperture and fluid flow passageway regulate the volume and pressure of air discharging at each aperture. Alternatively, the tower may be formed of a porous tubular polymeric material. A sleeve may direct the discharge purge gas in the interior.

Abstract: The present invention is to provide a backflow prevention apparatus of a clean room for solving a negative pressure point in the clean room so as to prevent a backflow from underfloor of the clean room. An intake port for suctioning the air of an underfloor chamber, a fan for supplying the air to an upper part in the apparatus, and a blowoff port installed on a side surface of an upper-floor part of the apparatus for supplying the air into the clean room are provided. By supplying the air of the underfloor chamber into the clean room, the backflow from the underfloor chamber into the clean room is prevented.

Abstract: A filter system includes a housing having an inlet opening surrounded by a sealing surface, an outlet opening. The housing may be rotational molded or be configured to be nestable with additional housings for shipping purposes. The system may also be configured such that the filter to be mounted therewith can be placed interior to the filter housing during shipment. A V-bank filter or a single-header box filter is positioned in the inlet opening, has a flange in general alignment with the sealing surface, and a plurality of filter media sections projecting away from the flange and into the housing interior. A seal is disposed between the flange of the V-bank or single-header box filter and sealing surface. A pre-filter, such as a panel filter, may be provided upstream from the primary filter.

Abstract: A cover of a means for holding children and/or babies, the holding means having at least one opening, wherein the cover includes: (a) means for releasable fastening to the holding means, wherein attachment of the cover to the holding means enables the cover to match its form to openings of the holding means, (b) a layer configured to at least partially filter air introduced via the openings into the holding means, the layer including at least one layer including non-woven material, and (c) at least one window, whereby the child in the holding means is capable of viewing outside the holding means. The windows include a layer impermeable to at least one of the group including dust, air pollutants, viruses, (Rubber) bacteria, UV radiation, liquids and insects.

Abstract: The present invention relates to a novel enclosure and air filtration design for use with robotic welding stations. It includes a novel frame design, novel air cleaning systems and systems for reducing the frequency of cleaning the air cleaning system.

Abstract: An inertial filter may allow longer cleaning intervals as compared to conventional filters. The inertial filter may be used with devices such as ozone converters or heat exchangers in aircraft applications. The inertial filter may be a louvered inertial filter adapted to change the direction of a large portion of inlet air, forcing this large portion through louvers as clean outlet air. A small portion of air is permitted to continue in its original direction, carrying with it dust and particles. The small portion of air may be up to about 10 percent of the total air flow through the filter.

Abstract: In various exemplary embodiments described herein, a system and related method to reduce particle contamination on substrates is disclosed. The system includes a substrate traverser mechanism having tracks to transport substrate carriers with one or more traverser ducts arranged to surround, at least partially, the tracks. The one or more ducts have slits along at least a substantial portion of a length of the tracks. A traverser exhaust fan is coupled to one end of each of the one or more traverser ducts. The fan provides sufficient volumetric airflow such that a velocity of the volumetric airflow through the slits is greater than a terminal settling velocity of a predetermined particle size. The fan draws particles less than approximately the predetermined particle size generated by the substrate traverser mechanism into the one or more traverser ducts.

Abstract: Disclosed are filter media constituents, filter media, filter constructions, and methods of employing the filter media and filter constructions for fluid filtration. The filter media and filter media constituents of the invention have unique properties enabling the efficient capture of microbes or microbial generating units. Fluids usefully filtered using the filter media and filter constructions include air and water.

Abstract: Provided is a silicon wafer which is stabilized in quality exerting no adverse influence on device characteristics and manufactured by restricting a boron contamination from the environment, and a manufacturing process therefor. Concretely, the silicon wafer is characterized by an attached boron amount thereon being 1×1010 atoms/cm2 or less. In order to manufacture such a wafer as contains a small amount of boron attached on the wafer surface, the wafer is treated in an atmosphere of boron concentration of 15 ng/m3 or less. Boron-less filters and boron adsorbing filters are used as filters in a clean room and the like so as to lower the boron concentration in the atmosphere.

Abstract: A method is provided which can efficiently remove conidia and microbe or the like of a phytopathogen from air and does not cause generation of ozone originated from discharge or so, thereby preventing occurrence of a plant disease without damaging a plant. There are also provided a flying organism removing apparatus and a plant protecting apparatus which can adequately capture flyable organisms, such as spores of a phytopathogen and/or small vermin, by applying an electrostatic field to the flyable organisms. An electrostatic field generated by dielectric polarization is applied to flyable organisms.

Abstract: An air cleaner for an enclosed electronic device such as an electronic slot machine, for use in areas that have a high level of air contamination from cigarette smoking such as casinos, includes an active field polarized media air cleaner or other filters for removing sub-micron particles, tars and/or volatile organic compounds (VOC's). In addition, a shared air cleaner for removing sub-micron particles, tars and/or VOCs is coupled to a plurality of enclosed electronic devices, such as a cluster of electronic slot machines.

Abstract: A grease containment apparatus to remove grease and other contaminants from hot air exiting a kitchen area through a vent system which includes a vertical separator.

Abstract: An air filter system and an air filter therefor are provided for use in a building with first and second zones separated by a wall-door system having a wall with a door therein. Weatherstripping is mounted between side and upper edges of the door and a door frame in the wall and between the lower edge of the door and the threshold region of the floor to substantially seal against air flow between the door edges and the door frame and floor when the door is closed. An air flow permitting opening is provided in the wall-door system, sized to permit a controlled amount of airflow between the first and second zones when there is a pre-determined pressure differential between said zones. An air filter is mounted in such opening.

Abstract: In order to provide a device for separating wet paint overspray from a stream of crude gas containing overspray particles which includes at least two filter devices each of which has an inlet opening through which a partial stream of crude gas enters the respective filter device and each of which includes at least one filter element for separating the overspray from the partial stream of crude gas, which allows one to maintain the fluidity of the mixture including of filter aid material and wet paint overspray that has been cleansed from the filter elements in the filter aid material reservoirs in a simple and efficient manner, it is proposed that the device should comprise at least one reservoir for receiving material which has been cleansed from the filter elements of a plurality of filter devices and a mixing device for mechanically blending the cleansed material from a plurality of filter devices.

Abstract: A fluid separation apparatus suitable for separating a mixed fluid with different properties and capable of separating a complex fluid mixture efficiently is provided. The fluid separation apparatus includes a sampling entrance, a first separation column, a second separation column, a bypass line, a detector and a guide multi-channel valve. A mixed fluid flows into the first separation column via the sampling entrance. The second separation column is connected to the first separation column in series and connected to the bypass line in parallel. The detector is connected to the second separation column and the bypass line. The guide multi-channel valve has different modes to control a flow-through status and a closed status between the first separation column and the second separation column, between the first separation column and the bypass line, between the second separation column and the detector, and between the bypass line and the detector.

Abstract: Ejector devices and systems are provided, that entrain ambient air within a primary stream of pressurized air, for use in a variety of applications including aircraft, buildings and other stationary structures. The ejector draws ambient air through an air treatment means such as a filter before its entrainment within the primary stream. The combined streams are then delivered to a ventilation system, an air curtain or other suitable recipient of treated, thermally conditioned air. The systems include diffusers, air curtain systems and variable air volume ventilation systems for aircraft and other vehicles.

Abstract: Embodiments of the invention generally provide a containment system having integrated bubble tight-dampers. In another embodiment, the containment system includes an integral auto-scan mechanism disposed in the housing of the containment system so that a filter element, disposed in the housing, may be leak tested without accessing the interior of the housing. In yet another embodiment, a method for testing a filter disposed in a containment system includes challenging an upstream side of a filter element disposed in a housing of the containment system with a test aerosol, and automatically moving a probe disposed within the housing to obtain samples for leak testing.

Abstract: Embodiments for a filter and method for fabricating the same are provide herein. In one embodiment, a filter is provided that includes a first end cap, a second end cap, at least a first filtration media element and at least a first brace. The first end cap has an air flow aperture formed therethrough. The first and second end caps define a central axis. The first filtration media element is coupled to the first and second end caps and has an orientation curved around the central axis. The brace separates a first closed edge of the filtration media element from a second closed edge of the filtration media element.

Abstract: An engine compartment arrangement for an agricultural harvester comprises an engine (10), a diesel particulate filter (12) coupled to the engine (10) to receive and filter hot exhaust gases therefrom, a fan (14), a radiator (16) disposed in a cooling airflow path in front of the fan (14) and coupled to the engine (10) to cool said engine (10), a cleaning air duct (18) having a first end (20) disposed immediately behind the fan (14) to receive a portion of the air ejected from the fan (14), and having a second end (22) disposed adjacent to the top of the diesel particulate filter (12) to exhaust a jet of the ejected air at a sufficient speed and in sufficient volume across the top surface (24) of the diesel particular filter (12) to prevent an accumulation of agricultural debris on top of the diesel particulate filter (12).

Abstract: A safety cabinet adaptable for a variation in body height of a worker using the safety cabinet, that is, a safety cabinet which prevents various bacteria from proceeding from the outside of the safety cabinet into a working space of the safety cabinet and prevents bacteria or virus from proceeding from the working space to the outside of the safety cabinet irrespective of a change in opening area of a front opening, is provided. A flow velocity of a clean air supplied into the working space and a flow velocity of the air flowing through the front opening are set at respective velocities predetermined to keep a physical isolation for preventing the contamination in accordance with a size of the front opening. Further, in the safety cabinet, the size of the front opening communicating with the working space under the front surface shutter is adjustable between 200 mm and 300 m.

Abstract: A high-velocity-air filter apparatus for filtering air passing through air supply vents in air conditioning systems includes a metal wire grid support, a nylon mesh air filter that rests on top of the metal wire grid support, and a metal peripheral frame attached to and surrounding the peripheral edges of both of the metal wire grid support and the nylon mesh air filter. The high-velocity-air filter apparatus is washable, reusable, antibacterial and mildew-proof. The high-velocity-air filter apparatus minimizes the resistance to air-flow, allowing up to 125% of the nominal air flow rate through the air supply vent. The high-velocity-air filter apparatus is extremely thin, less than 0.1875 inches, to allow for maximum adaptability to air supply vents and to minimize air resistance.

Abstract: Embodiments of the invention generally provide an apparatus and method for certifying a filter in a containment system without decontaminating the containment system prior to certification. The apparatus generally comprises a valve assembly selectable between at least three operational states. A first state prevents flow from prevents flow through a port of a housing. A second state fluidly couples the port to test equipment necessary to test a filter disposed within the housing. A third state seals the port but fluidly couples the test equipment to a decontamination system.

Abstract: In a method of drying an object, a first drying fluid and a second dry fluid may be first heated to form a gas mixture. The gas mixture may be second heated to prevent the mixed gas from condensing. The second heated gas mixture may be filtered to remove impurities from the second heated mixed gas. The filtered mixed gas may be then applied to the object so as to dry the object.

Abstract: A dust collector for collecting sawdust and wood chips during use of wood working tools includes a conduit or hose connected through an impeller forcing air with entrained dust and chips to an inlet ring of a single stage dust collector. A particle collector reservoir is connected on the bottom of the inlet ring and a filter element is connected on top of the inlet ring. A tapered ring wall with a central opening is provided in the inlet ring and a baffle is mounted in the central opening of the ring wall. The baffle is of a cone shape and tapers an opposite direction from the frusto-conical ring wall. The inlet opening of the inlet ring is directed to between the ring wall and the baffle.

Abstract: A method is provided which can efficiently remove conidia and microbe or the like of a phytopathogen from air and does not cause generation of ozone originated from discharge or so, thereby preventing occurrence of a plant disease without damaging a plant. There are also provided a flying organism removing apparatus and a plant protecting apparatus which can adequately capture flyable organisms, such as spores of a phytopathogen and/or small vermin, by applying an electrostatic field to the flyable organisms. An electrostatic field generated by dielectric polarization is applied to flyable organisms.

Abstract: An air-pressure-control system, the system comprising a system inlet, a system outlet, and a variable-speed fan configured to operate at a speed. A motor controller in communication with the fan is configured to control the speed of the fan. A differential-pressure transducer configured to monitor an air pressure at the system inlet and an air pressure at the system outlet. A closed-loop pressure controller in communication with the motor controller and differential-pressure transducer, wherein the pressure controller is configured to vary the speed of the fan based on the pressure differential between the inlet and outlet of the system, thereby controlling a pressure within a space. An ultraviolet kill chamber may be disposed between the inlet and outlet to expose airborne particulate to UV radiation. The system may also have a filter located within an air-flow path between the system inlet and system outlet.

Abstract: A measuring unit arranged to measure a clean environment is placed on a cell by a retrieval and storage apparatus to measure clean environment of the cell. Based on a measurement result, a fan filter unit or an exhaust vent is controlled to maintain the clean environment of the cell at a predetermined level or more.

Abstract: System for modifying the chemical composition of atmosphere within an enclosed space and incubator system including such a system. The concentration of oxygen within the enclosed space may be either increased or decreased using an electrochemical device. The concentration of carbon dioxide within the enclosed space may be increased using an electrochemical or chemical device. As necessary, purging of the system with ambient air can be a part of the process of controlling the chemical composition of the atmosphere. The present invention obviates the need to use pressurized gas cylinders to supply atmospheric gases to the enclosed space.

Abstract: A method and apparatus for extracting CO2 from air comprising an anion exchange material formed in a matrix exposed to a flow of the air, and for delivering that extracted CO2 to controlled environments. The present invention contemplates the extraction of CO2 from air using conventional extraction methods or by using one of the extraction methods disclosed; e.g., humidity swing or electro dialysis. The present invention also provides delivery of the CO2 to greenhouses where increased levels of CO2 will improve conditions for growth. Alternatively, the CO2 is fed to an algae culture.

Abstract: The present invention describes an air quality containment unit for isolating a construction, renovation or maintenance project. The air quality containment unit contains dust, molds and other air-borne pollutants using a filter, such as a high-efficiency particulate air (HEPA) filter, to maintain a negative air pressure in the unit. The air quality containment unit includes at least one sealable orifice that allows workers to introduce, for example, an electrical cord into the unit without breaching containment.

Abstract: The present invention relates to a method and a device for providing a zone (2) of clean air at an operation area (3) wherein an air treatment device (1) having a lighting device (25) is brought to a functional position such that the air treatment device (1) and the lighting device (25) are located above an operation area (3) and between the operation area (3) and a ceiling (32) in the operation premises (4). Air is taken into the air treatment device (1) from upper portions of the operation premises (4) and subsequently filtered in the air treatment device (1). The air is cooled in the air treatment device (1) to achieve a lower temperature than impure air (8) surrounding the zone (2) of clean air and subsequently discharged from the air treatment device (1) as a laminar air flow descending slowly downwards towards the operation area (3).

Abstract: An apparatus (401) for cleaning gas in blow moulding machines for shaping plastics material pre-forms to form plastics material containers. According to the invention at least one gas-processing device (416), which is capable of filtering the gas in a sterile manner and/or of reducing a quantity of an oxidative disinfecting/sterilizing agent contained in the gas flowing through and/or flowing past, is arranged in at least one gas line (402, 402a, 402b) which is a gas supply line (402a) or a gas removal line (402a) of a blowing station (8).

Abstract: In order to produce a cleaning device for cleaning a workpiece including a suction apparatus for sucking out impurities from an interior of the work piece wherein the suction apparatus has a particularly large suction effect, it is proposed that the suction apparatus at least one vacuum tank, at least one evacuation device for evacuating the vacuum tank, at least one ventilation line for connecting the vacuum tank to the workpiece and at least one blocking device for blocking off the connection between the vacuum tank and the workpiece.

Abstract: Three exhaust trap units are arranged in series in an exhaust trap device for trapping substances solidified from exhaust gas and exhaust gas paths are formed inside the exhaust trap units. One or more collision plates are placed in each trap unit. The collision plates in each of the two upstream side exhaust trap units are arranged such that a space extending in the axial direction of the exhaust path is present therein without being blocked by any of the collision plates. The collision plates in the downstream side exhaust trap unit are arranged such that such a space is not present. Uneven distribution of the amount of accumulation of solidified substances is suppressed without performing complex control, and outflow of the solidified components to the downstream side of the exhaust trap device can be reliably reduced.

Abstract: An air conditioning apparatus is disposed above an air conditioned space. The air conditioning apparatus includes a case, a bottom surface panel, a filter, and a filter support part. The bottom surface of the case is open. The bottom surface panel covers part of the open portion of the bottom surface of the case. The filter is accommodated within the case. The filter support part detachably supports the filter such that the filter is separated upward from the bottom surface panel by a predetermined gap.

Abstract: An air filter assembly is provided for an evaporative emissions control canister used with an internal combustion engine fuel system. The air filter assembly includes: a housing having an air inlet formed in an upper portion of the housing and an air outlet; and a plurality of vertically extending baffles disposed within the housing between the upper portion of the housing and a bottom portion of the housing. The baffles form a plurality of vertically extending channels interconnected horizontally through horizontally interconnecting channels disposed adjacent the upper portion of the housing and an opposing bottom portion of the housing. A first one of the vertically extending channels receives air entering the housing from the air inlet.

Abstract: Embodiments of the invention generally provide a containment system having integrated bubble tight-dampers. In another embodiment, the containment system includes an integral auto-scan mechanism disposed in the housing of the containment system so that a filter element, disposed in the housing, may be leak tested without accessing the interior of the housing. In yet another embodiment, a method for testing a filter disposed in a containment system includes challenging an upstream side of a filter element disposed in a housing of the containment system with a test aerosol, and automatically moving a probe disposed within the housing to obtain samples for leak testing.

Abstract: Systems are described for use in removing toxic airborne contaminants from a waxing environment where wax is being applied to sporting equipment. The systems include a base, at least one platform coupled to the base and an airflow generator. The at least one platform is configured to securely receive sporting equipment to be waxed. Each platform includes a first surface that is in contact with the waxing environment, an opposing second surface and at least one opening that extends between the first and second surfaces of each platform. The airflow generator is configured to generate an airflow for pulling harmful airborne contaminants through the at least one opening in each platform in a direction from the first surface to the second surface.

Abstract: A liquid processing apparatus, includes an apparatus main body, a power room having an atmosphere separated from the clean room by a partition member, an air suction path configured to suction an air in the clean room and take the air into the power room, a temperature control part provided in the power room and configured to control at least a temperature of the air taken in via the air suction path, an air supplying path configured to supply the air from the temperature control part to the liquid processing unit, a ventilation part configured to take the air from the air suction path and supply the air via the air supplying path, and a cleaning filer configured to clean the air taken in from the air suction path.

Abstract: A method and apparatus are provided for substantially containing dust generated along a fiber tow path extending from a creel to a compression roller in an automated fiber placement machine, by enclosing substantially all of the path of the fiber tows between the creel and the compression roller within a barrier that is substantially impermeable to dust. A dust collection apparatus may have a porous media and/or utilize an electrostatic charge for entrapping the dust.

Abstract: The invention concerns an isolation chamber for isolating substances from the ambient while simultaneously maintaining aseptic conditions within the isolation chamber and protecting the operator from potent compounds. The isolation chamber comprises a first container surrounding and defining an isolation space of holding the substances and a second container surrounding the first container. Preferably, the pressure of the isolation space is lower than the pressure of the barrier space.

Abstract: An air filtration system includes a housing that is interchangeably positioned within a plenum that is in fluid communication between the housing and a room. A fan is positioned within the housing and configured to draw contaminated air from the plenum. At least one filter member is positioned within the housing and configured to filter the contaminated air. A flexible duct is configured to channel filtered air from the housing to the room. The flexible duct is configured to enable the interchangeability of the housing.

Abstract: The invention concerns an isolation chamber for isolating substances from the ambient while simultaneously maintaining aseptic conditions within the isolation chamber and protecting the operator from potent compounds. The isolation chamber comprises a first container surrounding and defining an isolation space of holding the substances and a second container surrounding the first container. Preferably, the pressure of the isolation space is lower than the pressure of the barrier space.