Abstract: A system and related method for purifying indoor air comprising: a filter bed comprising a growing medium suitable for growing plants rooted therein and configured to be capable of sustaining an airflow therethrough between a top surface thereof and a bottom surface thereof; a micro-irrigation system comprising a plurality of irrigation source outlets for delivering water to the filter bed in a substantially-uniform fashion; an active region of the filter bed comprising that region of the filter bed configured so as to substantially have the airflow flowing therethrough; and micro-irrigation system configured such that water therefrom is capable of being projected so as to reach at least 50% of a top surface area of the active region.

Abstract: A gas treatment system has a housing defining an interior space adapted for holding liquid therein. The housing has an inlet port and an outlet port spaced from the inlet port so that gas passing through the interior space flows through the liquid therein. A gas delivery system directs gas to be treated into the interior space of the housing at the inlet port. An ultrasonic waveguide assembly is disposed within the interior space of the housing and includes an ultrasonic horn disposed at least in part intermediate the inlet port and the outlet port of the housing. The ultrasonic horn is operable at an ultrasonic frequency to ultrasonically energize liquid within the housing. An ultraviolet light source is for emitting ultraviolet light into the interior space of the housing to treat liquid flowing from the inlet port to the outlet port.

Abstract: An air purifier is provided, including a body comprising a wall defining an interior space, a first opening to the interior space, and a second opening to the interior space. In one example the body is a tubular body. An airflow pathway is provided through the tubular body defined between the first and second openings. A source of ultraviolet radiation is arranged to emit ultraviolet radiation into the interior space. A photocatalyst is arranged within the interior space and along the airflow pathway, and the ultraviolet radiation can be emitted onto at least a portion of the surface of the photocatalyst to activate the photocatalyst. In one example, the wall includes an aperture, and a cover is coupled to the body about the aperture and configured to enclose the source of ultraviolet radiation. In another example, the air purifier includes turbulence structure.

Abstract: The present invention provides an air filter including a main body, a pressure fan, a filter mode and a fixing assembly. The main body has a containing room, an entrance hole and an exit hole. The pressure fan is disposed in the containing room. The filter mode includes a first filter layer, a second filter layer and a frame body. The first filter layer is disposed in the entrance hole, and the second filter layer is disposed in the frame body. As such, users can select to use only the first filter layer or both filter layers at one time. Moreover, users only need to let the frame body pivot to a position away from the entrance hole so that users can change the filter layers faster and easier.

Abstract: The present invention relates to a cooling system. More particularly, the present invention relates to a cooling system for removing dust from air being drawn for cooling heat generation components of an electronic product, for improving convenience in maintenance or repair of the electronic product.

Abstract: An ultraviolet treatment chamber for treating exhaust streams, particularly those containing organic particulates, utilizes ultraviolet light energy very efficiently. This is done by setting up a circulating flow in a treatment plenum so that all of the effluent experiences a substantially uniform residence time without the need for baffles or other flow controllers that would block the ultraviolet light.

Abstract: A plasmon filter may include an element supportive of plasmon energy and having a plurality of openings through which a material may pass. A system includes a fluid filter supportive of evanescent energy, an evanescent field generator, a sensor, and/or other components. A corresponding method may include generating plasmons on the filter and exposing a material to the plasmon energy.

Abstract: A high cleaning efficiency room air cleaner with a slim profile providing a clean air delivery rate sufficient to clean any ordinary size room includes a flat-panel housing having an internal chamber sized to receive conventional large area flat-panel furnace filters of standard size and a fan array preferably of high efficiency, low power axial computer fans mounted to the flat-panel housing. The room air cleaner may include a scent cartridge and a UV lamp assembly.

Abstract: Provided are a photocatalytic material that improves a decomposition performance and a decomposition rate, as well as a photocatalytic member and a purification device in which the photocatalytic material is used. The photocatalytic member is a photocatalytic member (1) that includes a substrate (10) and a photocatalyst layer (11) formed on a surface of the substrate (10), wherein the photocatalyst layer (11) contains a titanium oxide photocatalyst and zeolite, the titanium oxide photocatalyst containing at least an anatase-type titanium oxide and fluorine, in which a content of the fluorine in the titanium oxide photocatalyst is 2.5 wt % to 3.5 wt %, and 90 wt % or more of the fluorine is chemically bonded to the anatase-type titanium oxide.

Abstract: A system for purification of air in an inner space has a housing having air inlet unit and air outlet units; air filtering means located in the housing between the air inlet unit and the air outlet units; and vertical attachment attached to the air outlet units and extending vertically upwardly so that air enters the housing at a lower level through the air inlet units and leaves the system at an outlet of the attachment at a level substantially higher than the level of the inlet units and air conditioner located in said housing, a humidifier located in the vertical attachment, a water container for supplying water to said humidifier. The air conditioner is connected with the water container so that a spray of water from the air conditioner flows into the container.

Abstract: The invention relates to an air cleaning device essentially comprising at least a vertical hollow structure having a first perforated side surface forming an inlet (1-2) for the air to be cleaned and a second perforated side surface forming an outlet (3-4) for the cleaned air. The invention is characterized in that the vertical hollow structure is covered with a protective cover and decorative elements (15) are positioned outside said cover in order to conceal the vertical hollow structure completely or partially. The structure contains filter units, as well as a fan (6-7) that forces the passage of air between the air inlet and the air outlet, thereby eliminating impalpable components and preventing a reaction with impure gases which are also eliminated.

Abstract: A mobile sanitizer movable across a surface to sanitize the surface. The sanitizer may comprise an ultraviolet light source that illuminates the surface and a microprocessor control. The control may adjust the light source intensity in response to a speed of the movement of the light source relative to the surface. And, for instance, the control may drive a display indicating how movement of the device relates to sanitization settings input by a user.

Abstract: The present invention relates to an air filtration system and a method for making a photocatalytic oxidation substrate by powder coating a photocatalyst onto a metal substrate.

Abstract: The invention relates to an ultraviolet radiation lamp. The lamp comprises a substantially sealed cavity comprising a mercury-containing material; a filament disposed in the sealed cavity; and an electrical control element in contact with the filament, the electrical control element configured to adjust or maintain a temperature of the mercury-containing material with respect to a prescribed temperature. Such a constructions allows the present ultraviolet radiation lamp to be operated at optimal efficiency without the need to use additional components to add heat to and/or remove heat from the mercury-containing material.

Abstract: A collection apparatus for use in vacuum cleaners appliance to collect sucked up materials includes a tank that has a bottom, peripheral walls and an upper opening opposite to the bottom, and that is adapted to be closed by a removable lid; suction means that are coupled to the tank to create a negative pressure therein; and separation means that separate the sucked up materials from the air flows moving in a suction direction defined from an inlet into the tank and an outlet from the tank, which are either wet separation means or dry separation means that can be alternately and interchangeably mounted within the tank using removable mounting means.

Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.

Abstract: The present invention provides a method and apparatus for sanitizing air within a ventilation system using ultraviolet light. The air is exposed to the ultraviolet light for a preselected duration of time and at a desired power level to achieve a desired level of sanitization.

Abstract: Presented herein are various techniques for cooling a UV light source and keeping it within a predetermined temperature range. One embodiment is directed to using Venturi pump for the thermal control. Another embodiment employs a mechanical or electrical self-adjusting valve. Another embodiment is directed to using a forced air system to actively blow air across the light source. Examples of the device are an air cleaner, a vacuum cleaner, a mobile floor-sanitizer, and a hand-held sanitizer.

Abstract: A humidifier for treating humidified air with germicidal light is provided. The humidifier includes a water reservoir, an atomizer to atomize a supply of water, and an ultraviolet light source to expose the atomized water to germicidal light. The ultraviolet light source extends vertically within a cylindrical channel to irradiate the atomized water dissipating upwardly from the atomizer. The water reservoir can include a carbon filter and a hardness-removing module for removing containments and metal oxides from the water supply. A control panel indicates the remaining useful life of the ultraviolet light source, the carbon filter and the hardness-removing module based on historical humidifier usage and water quality levels.

Abstract: An air purifier has a housing with an inlet for receiving air and an outlet for exhausting air. The housing provides an air flow path for the flow of air in a downstream direction, from the inlet towards the outlet. Particulate pre-filtration is located within the housing downstream from the air inlet. VOC pre-filtration is located within the housing downstream from the particulate pre-filtration. UV filtration is located within the housing downstream from the VOC pre-filtration. VOC post-filtration is located within the housing downstream from the UV filtration. Final particulate filtration is located within the housing downstream from the VOC post-filtration.

Abstract: A device for filtering nanoparticulate matter below 300 nm in size from ambient air within a defined enclosed space comprises at least one filter medium containing at least one filter material, and a fan or blower, which blows or draws the air through the filter medium does so with sufficiently low air velocity in the filter medium that the air has a long residence time in the filter medium, during which time adhesive encounters between nanoparticulate matter and the solid phase of the filter material are highly probable. This air velocity is also being sufficiently low to ensure that, once adhesion has taken place, kinetic de-adhesion by the air flow is highly improbable. Such a device allows to keep the nanoparticle count inside the enclosed space kept below 5000/cc, equivalent to ‘natural woodland’, even though external levels may exceeded 200,000/cc: the removal of nanoparticles by cleaning making this <2.5% the external count.

Abstract: An air purifier has a housing with an inlet for receiving air and an outlet for exhausting air. The housing provides an air flow path for the flow of air in a downstream direction, from the inlet towards the outlet. Particulate pre-filtration is located within the housing downstream from the air inlet. VOC pre-filtration is located within the housing downstream from the particulate pre-filtration. UV filtration is located within the housing downstream from the VOC pre-filtration. VOC post-filtration is located within the housing downstream from the UV filtration. Final particulate filtration is located within the housing downstream from the VOC post-filtration.

Abstract: Disclosed is an air distribution control unit or a filtration/ventilation unit which is portable and/or can be mounted on or integrated in furniture e.g. as a cabinet of at the head region of a bed. The filtration/ventilation unit cleanses air from a person/patient by aspirating the person's/patient's exhalation air into the filtration/ventilation unit. To construct an at least partly isolated area around the patient, filtered air can be directed e.g. vertically out of the filtration/ventilation unit to perform an air curtain. Use of the filtration/ventilation unit reduces the risk of dissipation of air-borne diseases and health hazardous matter, and reduces the amount of air to ventilate a room with patients.

Abstract: An ultraviolet lamp, and an ultraviolet-shielding member that covers at least a part of an ultraviolet emission portion are provided. The ultraviolet-shielding member includes an ultraviolet non-transmissive and visible light transmissive portion that blocks or absorbs ultraviolet rays. Further, an air passage in which air around the ultraviolet emission portion is provided between the ultraviolet lamp and the ultraviolet-shielding member.

Abstract: A sealed air purifier is disclosed. A housing is formed by connecting a first shell and a second shell. The first shell and the second shell communicate via separable connecting base and connector. A retractable bag encloses the connecting base and the connector. A sealing structure is provided between both ends of the bag. The first shell has an air inlet connecting the inside and the outside and a gate to control the airflow. A compression assembly is disposed in the first shell. The second shell has an air outlet connecting the inside and the outside and a blocking element to control the air outlet. The second shell has a sterilizing device and a super ULPA filter. When the gate closes the air inlet, the compression assembly, sterilizing device, and the air outlet close correspondingly, so that the inside of the housing is isolated. Thus, the viruses remaining therein do not spread with air.

Abstract: Methods, devices, and materials that include, in certain embodiments, a mobile device, movable across a surface by a user, that provides ultraviolet light for a process of sanitizing or sterilizing the surface that comprises an ultraviolet light source for illuminating the surface with the ultraviolet light to thereby sanitize or sterilize the surface. The device may include a movement sensor operatively coupled to a microprocessor that receives movement data from the movement sensor, and an indicator that is operatively coupled to the microprocessor, with the microprocessor comprising programming to perform a comparison of the calculated dosage to a predetermined dosage, wherein the microprocessor, based on the comparison, controls the indicator to provide instructions to the user.

Abstract: An EUV lithographic apparatus includes a source collector apparatus in which the extreme ultraviolet radiation is generated by exciting a fuel to provide a plasma emitting the radiation. The source collector apparatus includes a chamber in fluid communication with a guide way external to the chamber. A pump for circulating buffer gas is part of the guide way, and provides a closed loop buffer gas flow. The gas flowing through the guide way traverses a gas decomposer wherein a compound of fuel material and buffer gas material is decomposed, so that decomposed buffer gas material can be fed back into the closed loop flow path.

Abstract: Disclosed herein is a device for the removal of biological and chemical contaminants from an air current The apparatus comprises a) a housing that defines an interior chamber, the housing having an inlet and an outlet; b) one or more ultraviolet emitting light sources positioned within the interior chamber; and c) one or more baffles providing resistance to airflow, wherein air enters the chamber through the inlet, travels through the inner chamber, and exits via the outlet. In addition, the apparatus includes a photocatalyst.

Abstract: A method for purifying polluted air having particle phase pollutants and gaseous phase pollutants is provided. The method comprising: separately purifying and treating particle phase and gaseous phase pollutants present in the air; providing a dust cleaning apparatus, a catalytic filter core and a valve for controlling an airflow path within an air purification apparatus; controlling the airflow path for the air to bypass the catalytic filter core in a way that: if the amount of particle phase pollutants is above a predetermined value, the valve is moved to the open position to enable the air to bypass the catalyst filtering core; if the amount of particle phase pollutants is less than a predetermined value, the valve is moved to the closed position to force the air to pass through the catalyst filtering core.

Abstract: A suction nozzle for use in a vacuum cleaner includes a suction opening through which air is drawn in from a surface to be cleaned, a sterilization chamber having at least one inlet and at least one outlet, the sterilization chamber being in fluid communication with the suction opening through the at least one inlet, and a sterilization unit disposed in the sterilization chamber to sterilize the air drawn into the sterilization chamber. The air drawn into the sterilization chamber revolves while moving from the at least one inlet to the at least one outlet.

Abstract: Embodiments of the invention generally include a filter housing having a bagging ring coated to enhance a bag-to-bagging ring seal. In one embodiment, the housing assembly includes a housing having an inlet, an outlet and an access port. A bagging ring is disposed around the access port and includes a material having a property that enhances the bag-to-bagging ring seal. Examples of materials that have a property that enhance the bag-to-bagging ring seal include materials that are attracted to a plastic bag, materials that are tacky, materials that have a static attraction to a plastic bag.

Abstract: An impact filter suitable for a kitchen exhaust hood is provided with a grease trap to capture grease particles and channel the particles away. The trap can be of different configurations. The filter can be used in various processes to clean air streams, such as filtering processes for removing grease and other cooking exhaust particles and other processes for removing grease particles.

Abstract: A high cleaning efficiency room air cleaner with a slim profile providing a clean air delivery rate sufficient to clean any ordinary size room includes a flat-panel housing having an internal chamber sized to receive conventional large area flat-panel furnace filters of standard size and a fan array preferably of high efficiency, low power axial computer fans mounted to the flat-panel housing. The room air cleaner may include a scent cartridge and a UV lamp assembly.

Abstract: An air sanitization system including a reactive oxygen species generator, a variable speed fan, a pathogen sensor and a controller. The reactive oxygen species generator generates reactive oxygen species from an oxygen-containing gas and discharges the reactive oxygen species to a conditioned space. The variable speed fan directs the oxygen-containing gas to the reactive oxygen species generator at a controlled speed. The pathogen sensor senses a level of airborne pathogens in the conditioned space and generates a signal indicative of the level of pathogens sensed. The controller receives the signal from the pathogen sensor and varies the speed of the variable speed fan in response to the signal to decrease a speed of the variable speed fan in response to an increase in the level of airborne pathogens sensed by the pathogen sensor.

Abstract: An apparatus and method for sanitizing, decontaminating, deodorizing, conditioning, drying, treating, cleaning, modifying and/or otherwise improving an atmosphere within a container. The container can be a bag or other housing for equipment, food and/or suitable material. Ozone is generated within an atmosphere that is exposed to the materials. The generated ozone is mixed with the atmosphere. At least a portion of the generated ozone is then removed from the mixed atmosphere. The apparatus and method of this invention can be used to treat contaminated sports equipment and the like, as well as to treat food storage atmospheres, such as those exposed to fresh fruits and vegetables.

Abstract: Ultraviolet light is an effective sterilization agent. Convenient mobile sterilization devices are described herein that, in certain embodiments, provide indications to a user of how much sterilizing light is required for a given sterilization goal and how much light has been applied to a surface towards that goal. Users can move the devices across a target surface as needed to sterilize or disinfect the surface, with the device tracking the dosage applied to the surface. One embodiment of a mobile device that comprises an ultraviolet C (UVC) light source, a distance detector, an indicator, and a microprocessor that receives data from the distance detector for calculating an intensity of the light from the source on a target surface and for calculating a dosage of the light on the surface to provide a signal to the indicator when a predetermined dosage is achieved.

Abstract: A high cleaning efficiency room air cleaner with a slim profile providing a clean air delivery rate sufficient to clean any ordinary size room includes a flat-panel housing having an internal chamber sized to receive conventional large area flat-panel furnace filters of standard size and a fan array preferably of high efficiency, low power axial computer fans mounted to the flat-panel housing. The room air cleaner may include a scent cartridge and a UV lamp assembly.

Abstract: A system and related method for purifying indoor air comprising: a filter bed comprising a growing medium suitable for growing plants rooted therein and configured to be capable of sustaining an airflow therethrough between a top surface thereof and a bottom surface thereof; a micro-irrigation system comprising a plurality of irrigation source outlets for delivering water to the filter bed in a substantially-uniform fashion; an active region of the filter bed comprising that region of the filter bed configured so as to substantially have the airflow flowing therethrough; and micro-irrigation system configured such that water therefrom is capable of being projected so as to reach at least 50% of a top surface area of the active region.

Abstract: The present invention relates to a wet-type air purifying apparatus, more specifically, a wet-type air purifying apparatus that is installed in a passage(for example, ventilating openings or ventilating windows) through which the air passes and purifies polluting matter in the air by adsorbing the polluting matter contained in the air together with the water to a water filter, which is formed in a water frame to purify the polluting matter in the air by use of adsorbing ability of water and to which the water is injected, while the air passes through the water filter.

Abstract: An air sterilization device with low aerosol bounce includes an air conditioning pipe, a porous filter media, and a UV light generator. This porous filter media, it is secured on the fixing portion. This porous filter media has many irregularly distributed channels. The channel is coated with a coating layer having a thickness between 10 ?m to 1000 ?m sticking aerosols for avoiding bounce effect. The UV light generator can emit UV light to kill biological aerosols. It is suitable for long-term usage. So, the bounce effect of aerosols can be significantly reduced. The maintenance cost is low. The sterilization effect is excellent. Plus, the flow rate of the air conditioning system remains high.

Abstract: An apparatus (10) for purifying polluted air consisting of particle phase pollutants and gaseous phase pollutants, the apparatus (10) comprising: a dust level sensor (23) to measure the amount of particle phase pollutants in the polluted air; a dust removal component (14) to remove the particle phase pollutants from the polluted air; a catalyst filtering core (17) to decompose the gaseous phase pollutants by chemical reaction; a valve (22) for selectively controlling a path of air flow within the apparatus (10) and is movable between an open position and closed position, the valve (22) being positioned downstream from the dust removal component (14); wherein if the amount of particle phase pollutants measured by the dust level sensor (23) is above a predetermined value, the valve (22) is moved to the open position to enable the air to bypass the catalyst filtering core (17); and if the amount of particle phase pollutants measured by the dust level sensor (23) is less than a predetermined value, the valve (22)

Abstract: An ultraviolet treatment chamber for treating exhaust streams, particularly those containing organic particulates, utilizes ultraviolet light energy very efficiently. This is done by setting up a circulating flow in a treatment plenum so that all of the effluent experiences a substantially uniform residence time without the need for baffles or other flow controllers that would block the ultraviolet light.

Abstract: An air purifier has a housing with an inlet for receiving air and an outlet for exhausting air. The housing provides an air flow path for the flow of air in a downstream direction, from the inlet towards the outlet. Particulate pre-filtration is located within the housing downstream from the air inlet. VOC pre-filtration is located within the housing downstream from the particulate pre-filtration. UV filtration is located within the housing downstream from the VOC pre-filtration. VOC post-filtration is located within the housing downstream from the UV filtration. Final particulate filtration is located within the housing downstream from the VOC post-filtration.

Abstract: Described is an air and surface purifying device having a purifying cell structured for maximizing the realized photocatalytic reaction at a photocatalytic surface without using an additional ultraviolet bulb. The purifying cell positions at least three photocatalytic surfaces about a single ultraviolet bulb such that the photocatalytic surfaces substantially encompass the ultraviolet bulb and are saturated by ultraviolet light radiating from the ultraviolet bulb. Because the photocatalytic surfaces are saturated, the potential photocatalytic reaction at the photocatalytic surfaces is fully realized. Stated differently, the realized photocatalytic reaction is maximized. Because the purifying cell maximizes the realized photocatalytic reaction, the purifying cell maximizes the purifying capacity of the photocatalytic surface and, thus, the purifying cell itself.

Abstract: An air conditioner having an interior casing in which an air filter is provided along an inner face of an air suction inlet, includes a filter cleaning part, a cleaning time drive member for moving the air filter and the filter cleaning part with respect to each other, and an ultraviolet light irradiation unit which irradiates the air filter with ultraviolet rays. The air filter and the filter cleaning part are relatively moved by the cleaning time drive member to remove dust adhered to the air filter, and the ultraviolet light irradiation unit irradiates an uncleaned face of the air filter with the ultraviolet rays.

Abstract: An ultraviolet treatment chamber for treating exhaust streams, particularly those containing organic particulates, utilizes ultraviolet light energy very efficiently. This is done by setting up a circulating flow in a treatment plenum so that all of the effluent experiences a substantially uniform residence time without the need for baffles or other flow controllers that would block the ultraviolet light.

Abstract: Embodiments of the invention generally include a filter housing having a bagging ring coated to enhance a bag-to-bagging ring seal. In one embodiment, the housing assembly includes a housing having an inlet, an outlet and an access port. A bagging ring is disposed around the access port and includes a material having a property that enhances the bag-to-bagging ring seal. Examples of materials that have a property that enhance the bag-to-bagging ring seal include materials that are attracted to a plastic bag, materials that are tacky, materials that have a static attraction to a plastic bag.

Abstract: An air decontamination unit is described with a housing defining an interior, an intake and exhaust in direct communication with the interior, a blower—in operational communication with a control panel—for drawing in and moving air through the housing, which further includes a filter assembly, a UV lamp, an ozone lamp, and an ozone sensor for detecting the concentration of ozone therein—positioned in the interior of the housing, all in direct communication with the control panel.

Abstract: A plasmon filter may include an element supportive of plasmon energy and having a plurality of openings through which a material may pass. A system includes a fluid filter supportive of evanescent energy, an evanescent field generator, a sensor, and/or other components. A corresponding method may include generating plasmons on the filter and exposing a material to the plasmon energy.

Abstract: An air ventilation system, comprising an air inlet for admitting contaminated air into the ventilation system, an air outlet for discharging decontaminated air from the ventilation, and an ultra-violet light source disposed therebetween. The ventilation system has a filter disposed upstream of the ultra-violet light source. The filter has a grease particle separator with at least two layers of expanded metal associated therewith. Each has a predetermined number of apertures forming a reticulum. A cartridge filter may be provided for each grease particle separator and disposed upstream thereof. Each cartridge filter and associated grease particle separator preferably forms an integral filtering unit and may be placed at any location of the system.