Abstract: There are provided methods for sterilizing and/or disinfecting an object. The methods can comprise exposing the object disposed in a packaging material having at least one open end to an afterglow plasma, wherein the packaging material is non-porous and is transparent to UV radiation. There are also provided methods for using a packaging material. The methods can comprise disposing an object to be sterilized into the packaging material, the packaging material being non-porous, transparent to UV radiation, and having at least one open end; and exposing the object and the packaging material having at least one open end, to an afterglow of a plasma, thereby at least substantially protecting the object to be sterilized.

Abstract: An air purification system includes an internally hollow cylindrical casing made of a non-conducting material; an inner electrode arranged on an inner surface of the supporting member; an outer electrode arranged on an outer surface of the supporting member; a photocatalyst filter arranged on an outer surface of the outer electrode for purifying air inside a plasma generation zone; and a power source for supplying power of opposite polarities to each of the inner electrode and the outer electrode so as to generate plasma. The photocatalyst filter includes a filter element, and the filter element includes a porous titanium foil having a non-periodic spongy structure impregnated with anatase titanium dioxide particles as a photocatalyst.

Abstract: This specification relates to an improved method, process and apparatus for disinfecting and sterilizing all types of surfaces and indoor air and room air contaminated with microorganisms. The improved apparatus consists of a multi-wavelength narrow spectral width UV source that is more effective than mercury based 254 nm germicidal lamps for destroying the DNA and outer shell or membrane of virus, bacteria, spores and cists.

Abstract: An air purifier includes a case having an air inlet and an air outlet, a fan disposed adjacent the air inlet, a UV LED unit and a filter unit arranged over the fan along a flow path of air, and a fluid control structure disposed between the fan and the filter unit.

Abstract: A vehicle air purification system has a photocatalyst activated by photons emitted via an ultraviolet light emitting diode (UV-LED). The photocatalyst on a supporting structure is positioned to contact airflow passing through or over the photocatalyst. Chemical contaminants and microorganisms are eliminated from the airflow that makes contact with the photocatalyst structure.

Abstract: An electrically enhanced air filtration system is disclosed which uses rear fiber charging is disclosed. In particular, a fibrous filter may be placed in an upstream position within the system with one or more ionization arrays positioned downstream or to the rear of the fibrous filter in terms of airflow direction. The fibrous filter may include a grounded side and fiber side with the grounded side being upstream of the fiber side. The ionization array may include a plurality of electrodes each extending unidirectionally toward the fibrous filter.

Abstract: The invention relates to an air purification device for a vehicle and has an object to provide a DOR (Direct Ozone Reduction) system that can improve durability of activated carbon as an ozone purifier. FIG. 3 is a partially enlarged view of a fin of FIG. 2. FIG. 3(a) is a partial enlarged view of the fin in a front side, and FIG. 3(b) is a partially enlarged view of the fin in a rear side. As shown in FIGS. 3(a) and 3(b), in a louver, a coat amount of activated carbon is adjusted so as to gradually increase from a front side toward a rear side. Thereby, durability as the radiator can be improved, while oxidation degradation of the activated carbon by active oxygen is allowed to some degree.

Abstract: A modular ductwork assembly decontaminates an air stream circulating within a heating, ventilation and air conditioning (HVAC) system. The assembly includes one or more of (a) an ionizing module for removing particulates from the air stream, (b) a sterilization module for neutralizing airborne pathogens present in the air stream, (c) an ozone treatment module for neutralizing pathogens or odoriferous or gaseous constituents or volatile organic compounds (VOCs) present in the air stream, optionally (d) baffles for slowing and disrupting the flow rate and promoting turbulence in the air stream traveling through the modules, optionally (e) a fan module for directing a treated air stream, optionally (f) an ozone sensor, optionally (g) a monitoring or ozone control means, and optionally (h) a means of delivering and repurposing generated ozone. Each of the modules is arranged substantially adjacent to at least one of the other modules.

Abstract: An air purifying apparatus according to an embodiment includes a body having first and second conduits through which a flow of air is generated from an air inlet to an air outlet, an ultraviolet light emitting diode part and a first filter part disposed within the first conduit, and a second filter part disposed within the second conduit.

Abstract: A storage apparatus according to an embodiment may include a body having a storage space of storage products and an air purifying module coupled to the body. The air purifying module may include a light emitting diode part disposed along a passage of air to provide ultraviolet light, and a filter part disposed adjacent to the light emitting diode part.

Abstract: An air conditioner including a body having an evaporator for heat-exchanging air flowing in the body, and an air purifying module coupled to the body. The air purifying module may have a light emitting diode part disposed along a flow path of the air to provide ultraviolet rays, and a filter part disposed adjacent to the light emitting diode part.

Abstract: A method and apparatus for sterilizing an article. The method comprises placing an article in a sterilization container, generating oxidizing plasma radicals at atmospheric pressure, and providing the oxidizing plasma radicals to the sterilization container to sterilize the article in the container.

Abstract: An embedded multifunctional air purifier for kitchen installed in a predetermined space of a cupboard includes a casing, a hood, an exhaust module, an electrostatic dust collector, a front filter, a gas detection module, a photocatalyst module and a vitamin C filter. With the design of the hood, the exhaust module is covered by the hood to reduce noises when the air purifier is used. Besides the removal of fumes and odors, filtration and disinfection, the air purifier can also produces fresh air with vitamin C, and alerts users to prevent a gas poisoning incident when a toxic gas leak occurs.

Abstract: In various embodiments, a device for irradiating surfaces is provided. The device may include a radiation emitter having a radiation emitter vessel, wherein the radiation emitter vessel has at least one tunnel-like passage; and a structure configured to allow a process gas to flow through the at least one tunnel-like passage.

Abstract: An aircraft has a ventilation system that employs a plurality of nozzles positioned in a cavity between a sidewall of the aircraft cabin and a section of the aircraft fuselage. The nozzles receive a supply of ventilation air and direct jets of air from the nozzles, through the cavity and into the aircraft cabin. The jets of air produced by the nozzles create low-pressure areas in the cavity. At least one return air opening in the cabin sidewall communicates the low-pressure areas with the cabin interior, whereby the low pressure areas draw air from the cabin interior into the cavity where the drawn air is entrained with the jets of air produced by the nozzles. Devices inside the cavity remove suspended impurities from the air drawn into the cavity. In this manner, the ventilation system filters or sanitizes the air drawn through the system.

Abstract: Implementations and techniques for cyclonic catalytic ducts are generally disclosed.

Abstract: Photocatalytic devices are described. In some embodiments, a photocatalytic device may include a cylindrical housing having an inlet opening and an outlet opening; one or more catalyst substrates disposed within the cylindrical housing and adapted to support a hydroxyl radical reaction with ultraviolet light and water vapor that results in hydro peroxides and hydroxyl ions; an ultraviolet light source disposed within the cylindrical housing and adapted to provide the ultraviolet light to the one or more catalyst substrates; and a fan disposed within the cylindrical housing and adapted to cause air to enter the cylindrical housing via the inlet opening, circulate through the one or more catalyst substrates within the cylindrical housing, and exit the cylindrical housing via the outlet opening.

Abstract: A wet type dust collector for air purifying according to an embodiment of the present invention can efficiently cool polluted air and remove sludge because it is designed to be able to continuously cool polluted air from the outside with cooling water, which is cooled and circulated, and to remove sludge and foreign substances.

Abstract: In an air purifying apparatus for removing contaminants, such as soot and the like, by burning contaminated air while passing the contaminated air through a filter heated by microwaves, the apparatus includes: a housing, which is hollow, and comprises an inlet on one side and an outlet on the other side; a ceramic filter of a longitudinal material, which is arranged in the housing in a longitudinal direction of the housing, and includes a plurality of partition walls formed so that a flow path where contaminated air flows may be divided in plurality; and a microwave generator configured to generate microwaves to be supplied to one end surface of the ceramic filter in a longitudinal direction thereof to heat the one end surface of the ceramic filter in the longitudinal direction.

Abstract: The present application is directed to a novel composition which acts as a barrier to noxious agents while adding self-detoxifying catalytic treatments to neutralize the noxious and harmful warfare agents when applied for example on a fabric, or other solid support.

Abstract: An air filtration media for use with a heating ventilation and air condition (HVAC) system is provided. The filtration media comprises an air filter media layer having a first and second side, a PCO media layer having a first and second side, and a barrier layer positioned between the second side of the air filter media layer and the first side of the PCO media layer. The air filter media layer, barrier layer, and PCO layer are pleated together and enclosed within a frame for placement adjacent a light source within a plenum of the HVAC system.

Abstract: The present disclosure provides devices and methods for making a light emitting diode (LED) activated photocatalyst air filter. One or more embodiments include a filter material that includes a photocatalyst, and a frame that includes an array of a number of LEDs positioned on the frame to project a wavelength of light directed toward the filter material, wherein the array of LEDs is positioned a distance from the filter material.

Abstract: Close proximity, including conversations at closer than three (3) feet apart, facilitates disease transfer via airborne pathogens. This transfer can be mitigated by the present invention, which is directed towards methods, systems and apparatuses to produce a predictably shaped and minimally intrusive air barrier that may comprise an airborne disinfectant, to divert and or render harmless and to divert and negate close proximity airborne pathogens, such as influenza and severe acute respiratory syndrome, etc., and other airborne particulates transferred from an infected person towards the face of an unfortunate recipient at normal conversational distances apart from each other, and/or to divert and render harmless such airborne particulates.

Abstract: An apparatus (100 and/or 200) and corresponding method (500) for air sterilization and disinfection can include an electronics and control module (110 and/or 210), a means for drawing air from the surrounding environment into the apparatus (120 and/or 220), an air management chamber (130 and/or 230), and a housing (170 and/or 270). The means for drawing air from the surrounding environment into the apparatus (120 and/or 220) mobilizes latent pathogens in the environment and draws them into the apparatus (100 and/or 200) for sterilization and disinfection. The air management chamber (130 and/or 230) provides for exposure of the airborne pathogens to UV radiation, via UV LEDs (150 and/or 250), with a dosage sufficient to penetrate the cell walls and destroy the pathogens. The electronics and control module (110 and/or 210) powers the apparatus (100 and/or 200) and interfaces with the electronic components. The housing (170) forms the outer shell of the apparatus (100).

Abstract: This invention provides a healthcare cum optimal illumination device. The inventive device includes at least one frame, at least one light source, and at least one layer of treated filter cover. The light source is disposed in the frame. The light source emits infrared radiation, visible light radiation, and ultraviolet radiation. The visible radiation is used for illumination, and the invisible infrared and ultraviolet radiation is harnessed to improve indoor air quality. The layer of the filter cover is treated with substances of air cleaning properties and encloses the frame. The treated filter cover has at least one opening where air in the frame heated by the infrared radiation flows out from the device and cooler ambient air surrounding the device is drawn through the filter cover into the frame replacing the heated air that has flown out of the device to form air circulation and to perform air purification.

Abstract: A modular germicidal light grid system for use inside an air treatment apparatus that has a plenum in which a stream of air is enclosed. The system comprises at least one elongate member and at least one lamp assembly. Each lamp assembly comprises a housing defining at least one socket and is mounted to one elongate member at a predetermined position. The system further comprises at least one linear germicidal light source. Each light source has a longitudinal axis and a distal end constructed and arranged to mount within one socket of the housing. The elongate member is mounted within the plenum and the lamp assembly is mounted to the elongate member such that the longitudinal axis of the light source extends therein the stream of air and is positioned at an acute light angle relative to the direction of flow of the stream of air.

Abstract: Superior hydroxyls are provided which have effects on organic and inorganic compounds and/or pollutants over substantial periods of time and/or at substantial distances from where the superior hydroxyls are generated. Also provided is a hydroxyl generator, in which UV lamps are positioned such that the coronas which they produce when emitting UV radiation fill substantially all the interior space of the hydroxyl generator. The coronas overlap each other by a maximum amount of between 5% and 25% of the radius of each corona.

Abstract: A non-thermal plasma cell having an annulus of a dielectric material, such as ceramic, formed from a continuous wall of material, the continuous wall having apertures therein, a pair of annular air-permeable electrodes mounted on opposing sides of the wall of the dielectric, and optionally an air gap provided between each electrode and the wall over at a least part of the circumference of the wall. The thickness of the dielectric material is substantially greater than the thickness of the electrodes, which may comprise metal foils.

Abstract: A modular, integrated, combination air purification and aroma diffuser includes a UV and catalytic oxidation germicidal cell and multiple filtrations as pre-treatment of air diffusing essential oils or other liquids as ultra-fine droplets entrained in airflow into enclosed, habitable spaces. Liquid microbicide, insecticide, fumigant, or aroma therapy is kept cleaner by eradication of microbes. Comparatively larger droplets are separated out and recycled to the reservoir after initial atomization. An electrical module, between a purifier and filters upstream and a diffuser downstream, includes a pump, a fan, and a controller for both. Staged, double-eduction, triple-separation processes include a micro-cyclone for quiet, well diffused flow of ultra-fine droplets.

Abstract: The presently claimed invention provides a phtotocatalytic air purification unit, comprising a fin structure and an UV lamp. The fin structure comprises a plurality of fins coated with a layer of photocatalsyt, and said fin structure is able to increase the surface area for photocatalyst coating, ultimately increasing air pollutant removal efficiency with minimum air resistance. The air purification unit of the present invention is preferably installed in a HVAC system.

Abstract: A modular, integrated, combination air purification and aroma diffuser includes a UV and catalytic oxidation germicidal cell and multiple filtrations as pre-treatment of air diffusing essential oils or other liquids as ultra-fine droplets entrained in airflow into enclosed, habitable spaces. Liquid microbicide, insecticide, fumigant, or aroma therapy is kept cleaner by eradication of microbes. Comparatively larger droplets are separated out and recycled to the reservoir after initial atomization. An electrical module, between a purifier and filters upstream and a diffuser downstream, includes a pump, a fan, and a controller for both. Staged, double-eduction, triple-separation processes include a micro-cyclone for quiet, well diffused flow of ultra-fine droplets.

Abstract: An extreme ultraviolet light source apparatus in which a target material is irradiated with a laser beam and turned into plasma and extreme ultraviolet light is emitted from the plasma may include: a chamber in which the extreme ultraviolet light is generated; an electromagnetic field generation unit for generating at least one of an electric field and a magnetic field inside the chamber; and a cleaning unit for charging and separating debris adhered to an optical element inside the chamber.

Abstract: An anti-microbial air processor is configured and arranged to fit at least substantially across an airway in a personal patient-warming apparatus to thereby inactivate airborne microbes before those airborne microbes are exposed to a patient via warming air delivered by the personal patient-warming apparatus. By one approach, the anti-microbial air processor comprises an anti-microbial air filter. By another approach, in lieu of the foregoing or in combination therewith, the anti-microbial air processor comprises one or more ultraviolet light sources configured to expose at least one inner surface of the personal patient-warming apparatus to ultraviolet light to thereby inactivate microbes.

Abstract: An air cleaning apparatus includes an air flow duct, with an extent in an axial direction, to accommodate air flow entering the apparatus, an air-conveying fan unit disposed in the air flow duct, a precipitator connected to a high-voltage source and with a throughflow passage for air to be cleaned. The precipitator includes two electrode elements or two groups of electrode elements, each of the respective two being connected to a respective pole of the high-voltage source, and a unipolar corona electrode disposed close to one end of the air flow duct. A target electrode is disposed at radial spacing from the corona electrode, the corona electrode being so disposed that the ions generated at it can freely spread away from the corona electrode towards the target electrode, and that the target electrode surrounds the air flow entering the apparatus.

Abstract: The present invention relates to a method for purification of air, comprising the degradation of all or some of the pollutants by the action of UV rays that are obtained by means of a single light source emitting rays at 254 nm and rays at 185 nm, and optionally UVA rays, and by photocatalysis, the ratio of the amount of energy 185 to the amount of energy 254 ranging from 0.01 to 1. The present invention also relates to a device allowing said method to be carried out.

Abstract: This document describes a high intensity air purifier, a super oxidation purifier, and a controller for controlling operation of any of various purification systems. The air purifier includes an air purifier system coupled within a housing having an air inlet and an air outlet. The air purifier system includes a pre-filter coupled to the air inlet, an axial fan for receiving and forwarding air from the air inlet. The air purifier further includes a UV reaction chamber having a UV-light source for providing UV light to the forwarded air from the air inlet and a reflective lining to reflect the provided UV light, to provide UV purified air from the UV reaction chamber. The air purifier further includes a chemical catalyst cartridge for receiving the UV purified air from the UV reaction chamber, for further purifying the UV purified air, and a post filter coupled to the air outlet.

Abstract: Devices and corresponding methods of use are described herein that may include an enclosing structure defining a closed loop flow path and a system generating a plasma at a plasma site, e.g. laser produced plasma system, where the plasma site may be in fluid communication with the flow path. For the device, a gas may be disposed in the enclosing structure which may include an ion-stopping buffer gas and/or an etchant. A pump may be provided to force the gas through the closed loop flow path. One or more heat exchangers removing heat from gas flowing in the flow path may be provided. In some arrangements, a filter may be used to remove at least a portion of a target species from gas flowing in the flow path.

Abstract: Devices and methods for sterilizing an enclosed space using ozone are disclosed herein. Various embodiments of the devices and methods also provide for accelerated degradation of the ozone upon sterilization. In some embodiments, a disclosed sterilization unit includes a first housing defining an ozone generation cavity, an ozone generator disposed within the ozone generation cavity, a second housing defining an ozone degradation cavity, and an ozone degrader disposed within the ozone degradation cavity. The sterilization unit of various embodiments is configured to cycle air between the enclosed space and the ozone generation cavity during an ozone generation cycle to sterilize the enclosed space; similarly, the unit is further configured to cycle air between the enclosed space and the ozone degradation cavity during an ozone degradation cycle to return the air within the enclosed space to safe ozone levels.

Abstract: An air blower including a motor 2 having output shafts 21, 21 on both sides in the axial direction and two impellers 3, 3 mounted on the respective output shafts 21, 21, and two ducts 5, 5 that individually allow passage of the air blown out by rotation of each of the impellers 3, 3 in the same direction and discharge the air to the outside are included. At a part or the whole of each of the ducts 5, 5, a laminar flow section that makes the flowing air laminar flow. An ion generating section is arranged at each laminar flow section so that ions generated by the ion generating section can effectively be included in the air, increasing the ion concentration of ions discharged in a room together with the air.

Abstract: UV-C light assembly is designed to kill germs (bacteria, molds, protozoa, virus, and yeast) in the forced airstreams of HVAC systems, thus preventing the spreading of germs into other rooms or spaces. An air-flow activated switch is invented for turning on the UV-C lights when airstreams pass through and turning off when airstreams stop in the HVAC systems. The UV-C light assembly is installed inside duct through air filter's opening. The UV-C germicidal assembly is an easy add-on to an existing HVAC system for indoor air purification. The UV-C light sources are either LEDs or fluorescent tubes.

Abstract: An apparatus for air purification and disinfection is provided. The apparatus includes at least one elongated reactor having an elongated inner electrode and an elongated outer electrode. The outer electrode encompasses at least a portion of the inner electrode along a longitudinal axis of the reactor. The outer and inner electrodes are positioned in a substantially concentric relationship and define a reaction chamber therebetween. The apparatus also includes an inner electrode mounting member holding the inner electrode at an end of the inner electrode and an outer electrode mounting member holding the outer electrode at an end of the outer electrode. The apparatus further includes a power supply adapted to supplying electrical power to the inner and outer electrodes to generate plasma within the reaction chamber to purify and disinfect air flowing therethrough.

Abstract: A free radical sterilization system having a chamber defining a region, and a generator for generating free radical reach effluent from a free radical electric generator and/or a vaporizer. A closed loop circulating system without a free-radical destroyer is provided for supplying the mixture of free radicals from the electric generator mixed with the hydrogen peroxide solution in the form of the effluent to the chamber. The free-radical sterilization system is used in sterilizing items in the chamber and, with an open-bottomed wound chamber, in treating wounds on a body.

Abstract: This invention relates to a method, process and apparatus for disinfecting and sterilizing all types of surfaces contaminated with microorganisms and toxic substances to render both inactive. Furthermore, this invention relates to both a method and apparatus for disinfecting and/or sterilizing breathable air and then using this air to protect a confined space from external contamination. The apparatus consists of a new ultra-violet (NUV) source that is more effective than mercury based 254 nm light for destroying DNA of virus, bacteria, spores and cists. It is most effective in breaking chemical bonds in toxic gases and Biotoxins that are useful to terrorists. It is combined with other apparatus that remove particulates and byproducts sometimes produced by the NUV source and maintains positive pressure of the confined space so as to prevent the influx of air from outside the protected zone.

Abstract: An air purifier with a tub capable of containing a liquid. Reactor plates are in the tub wherein the reactor plates provide a curvilinear path for air flow with abrupt directional change. A pump is situated to distribute the liquid onto the reactor plates to form a moist surface. An air inlet brings contaminated air into contact with biocatalyst on the moist surface thereby forming purified air. An air outlet discharges said purified air from the air purifier.

Abstract: A controller for an ultraviolet (UV) purification system having UV lamps includes a sensor in communication with a given UV lamp as well as a processor in communication the sensor. The sensor provides the UV light intensity rate of the UV lamp (sensed rate) and transmits this information to the processor which compares the sensed rate with a memory stored desired UV light intensity rate (desired rate). An indicator in communication with the processor indicates when the UV lamp is producing a UV light intensity below the desired rate. Current is provided to the UV lamp by a ballast. The processor includes a memory stored predetermined UV light intensity rate (predetermined rate) that is greater than the desired rate. When the sensed rate is lesser than the predetermined rate, the current provided by the ballast is increased such that the UV lamp produces a UV light intensity at least equal to the predetermined rate.

Abstract: A bipolar ionization tube includes a cylindrical glass tube having an open end and closed end. A cathode is positioned within and is circumscribed by an interior surface wall of the glass tube. An anode circumscribes an exterior surface of the glass tube, where the anode is adapted for electrical connectivity with a first conducting terminal of a power supply. An electrically insulated end cap has a groove for receiving the open end of the glass tube, and the end cap is secured to the glass tube with at least one sealant. An elongated conducting terminal having a first portion extends through the end cap and is adapted for electrical connectivity with a second conducting terminal of the power supply. A second portion of the conducting terminal extends into the glass tube and is configured for electrical connectivity with the cathode.

Abstract: This document describes a high intensity air purifier, a super oxidation purifier, and a controller for controlling operation of any of various purification systems. The air purifier includes an air purifier system coupled within a housing having an air inlet and an air outlet. The air purifier system includes a pre-filter coupled to the air inlet, an axial fan for receiving and forwarding air from the air inlet. The air purifier further includes a UV reaction chamber having a UV-light source for providing UV light to the forwarded air from the air inlet and a reflective lining to reflect the provided UV light, to provide UV purified air from the UV reaction chamber. The air purifier further includes a chemical catalyst cartridge for receiving the UV purified air from the UV reaction chamber, for further purifying the UV purified air, and a post filter coupled to the air outlet.

Abstract: The present disclosure relates to purification and/or sterilization techniques and devices. Methods and systems are provided herein for removing contaminants from air using a combination of an ionic liquid and a reactive oxygen species.

Abstract: In order to remove a pathogenic effect of a microorganism in a room or a work space in a short period of time, an ion diffusing apparatus, which includes an ion generator (17, 18) for generating positive ions each including H+(H2O)m and negative ions each including O2?(H2O)n, where m and n are arbitrary integers, and a blower for delivering the positive ions and the negative ions, which are generated from the ion generator (17), from a blowout opening, is operated to widely distribute, with a high concentration, the positive ions and the negative ions in the room.

Abstract: The present invention relates to methods and devices for providing microbial control and/or disinfection/remediation of an environment. The methods generally comprise: generating a Purified Hydrogen Peroxide Gas (PHPG) that is substantially free of, e.g., hydration, ozone, plasma species, and/or organic species; and directing the gas comprising primarily PHPG into the environment such that the PHPG acts to provide microbial control and/or disinfection/remediation in the environment, preferably both on surfaces and in the air.