Abstract: An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, a sterilization light assembly, and a flow sensor. The housing may define an indoor portion and an outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The sterilization light assembly may be disposed within the indoor portion to transmit an ultraviolet light emission thereto. The flow sensor may be disposed within the indoor portion upstream from the exhaust outlet. The flow sensor may be operably coupled to the sterilization light assembly and configured to activation of sterilization light assembly in response to detecting a predetermined airflow within the indoor portion.

Abstract: A helical photoreactor includes a lamp module and a tube coil, which has a plurality of tube windings between an input section and an output section. The tube coil is arranged around the lamp module. The helical photoreactor has a carrier device, which carries the tube coil, and a protective housing, which surrounds a receiving space, in which the carrier device with the tube coil and the lamp module are arranged. The carrier device provides a predetermined positioning of the tube coil with respect to the lamp module and the protective housing. An elongated guide element, on which an engagement element is arranged so as to be capable of being guided in a longitudinally movable manner and so as to be capable of being positioned. The elongated guide element specifies the positioning of the carrier device with the tube coil by the engagement element guided on the elongated guide element.

Abstract: Provided are a sterilization device, an air filter, and a filtration system, which relate to the technical filed of sterilization equipment. The sterilization device includes an ultraviolet (UV) lamp module, two cover plates arranged opposite each other, and two reflecting layers, where a flow chamber which allows the air to flow therein is formed between the two cover plates, and each of the two cover plates is provided with at least one air vent communicated with the flow chamber; wherein two opposite surfaces of the two cover plates respectively have the two reflecting layers disposed thereon, and at least one of the two reflecting layers is a diffuse reflection layer; and the UV lamp module is disposed on the cover plate and is used to emit UV light into the flow chamber.

Abstract: A system including groups of illuminators configured to provide adaptive irradiance within the ultraviolet spectrum to remove pathogens, particles, and anthropogenic activity from an air mass of a physical environment based on a detection of a presence of and amount of pathogens, particles, and anthropogenic activity in the air mass.

Abstract: An excimer lamp includes a plurality of arc tubes and an electrode pair. The electrode pair comprises a plurality of elongated electrode plates extending along a tube axis direction of the plurality of arc tubes. Each electrode plate comprises a polarity opposite that of an adjacent electrode plate (i.e., alternating polarities). The plurality of arc tubes and the plurality of electrode plates are disposed in an alternating side-by-side orientation such that an arc tube of the plurality of arc tubes is disposed between adjacent electrode plates of the plurality of electrode plates.

Abstract: A low dose disinfection and control system that utilizes empirical and theoretical data to compare performance, sensor data, stored patterns, historical usage, use intensity indexes over time and tracking information to provide a sophisticated data collection system for disinfection. The data can be used to dynamically control UV treatment parameters. This tracking is designed to enable a learning and feedback tool that helps to modify behavior and the understanding of infection. The present invention provides a system for integrating UV treatment into products. The product may include an outer layer of UV transmissive material forming an external touch surface. The UV disinfection system includes a UV source internal to the product. In use, the internal UV source produces UV-C light that passes into and permeates the outer layer to treat the touch surface. A UV reflective layer may be disposed beneath the outer layer.

Abstract: A cover assembly is configured for disinfecting an air conditioning unit. The assembly includes a cover made of a pliable material that is shaped to be installed on the inside portion of an air conditioning unit. The assembly also includes an ozone generator configured to direct ozone into the air conditioning unit. A controller is operatively coupled to the ozone generator and is configured to control operation of the ozone generator.

Abstract: Systems and methods for dispensing items utilizing a housing having a compartment configured to store a quantity of items, a dispensing device configured to dispense at least one of the items from the housing to an individual, an activation device configured to activate the dispensing device to dispense the at least one item from the housing in response to an interaction with the individual, an outlet in the housing through which the items may be individually dispensed from the housing by the dispensing device, and one or more light sources that emit UV-C radiation within the housing and irradiate exterior surfaces of the items or packaging of the items with the UV-C radiation. Methods utilizing the system may be used to dispense items, such as sacramental elements for Communion.

Abstract: A lighting fixture containing both visible light sources and UV light sources is disclosed herein. In one embodiment, the fixture is an overhead fixture. UV light can sanitize/disinfect the surrounding environment over a period of about 30-45 minutes. In this way, viruses, germs, bacteria, mold, and the like can be destroyed to clean the air and/or surfaces (e.g., furniture) of the room exposed to UV light. Accordingly, embodiments of the present invention include a physical input device, such as a wall-mounted button, switch, or wireless device, that can safely and efficiently activate a lighting assembly to produce UV light in a way that protects occupants from unintentional exposure to UV light. This configuration is especially useful in situations where the use of UV light is regulated, such as in a hospital setting.

Abstract: A vehicular air-conditioning apparatus includes a photocatalytic module in which light is radiated on a photocatalytic filter to sterilize the photocatalytic filter. In particular, vehicular air-conditioning apparatus incudes: a duct to allow conditioned air to flow therethrough; the photocatalytic filter mounted in the duct and coated with a photocatalytic material to remove harmful substances in reaction to light energy; and a rotation unit rotatably mounted in the duct. In particular, the rotation unit is provided with a light source to radiate light toward the photocatalytic filter. When the rotation unit is rotated, a position of the light source is changed in a rotational direction of the rotation unit such that the light is radiated on the photocatalytic filter over an increased range. Thus, a filter sterilization effect is improved over the entire area of the photocatalytic filter with reduced number of light sources.

Abstract: A method for spectroscopically detecting a chemical in a gas sample includes illuminating the gas sample with ultraviolet light and photolyzing a first chemical in the gas sample to generate a photolyzed gas sample and spectroscopically detecting a second chemical in the photolyzed gas sample. The second chemical has an optical absorption range within a respective optical absorption range of the first chemical.

Abstract: The present invention is directed to a device consisting of at least one occupancy sensor and relay switch for providing power to UVC germicidal light sources when the at least one sensor does detect the absence of a person or object in the room or space, and automatically turns off the UVC germicidal light sources when the at least one sensor does detect the presence of a person or object entering or already in a room or space. Additionally, the same device using the at least one sensor and relay switch can include general lighting white color light sources that energize automatically when the at least one sensor does detect the presence of a person or object in a room or space, and automatically turns off the general lighting white color light sources when the at least one sensor does detect the absence of a person or object in the room or space.

Abstract: An UV disinfection system (200) may feature a chamber (207) with internal spherical reflective surfaces (208) to evenly reflect UV radiation from all angles to direct the UV radiation to all surface area of the object inside the chamber to disinfect object utilizing UV radiation under controlled time. An object (215) to be disinfected may reside within the chamber (207) on a UV transparent rack or shelf (214). The spherical reflective surfaces may be fashioned by placing such surfaces on a polyhedral internal structure or making the internal chamber spherical in and of itself (208). Multiple UV sources (209a), (209b) may also be utilized.

Abstract: A photopolymerized prepolymer manufacturing system can create material suitable for 3D printing buildings or building components. The system can include a conveyor, a prepolymerization chamber, and one or more processors. The prepolymerization chamber can have multiple prepolymerization stations arranged in sequence and can convert untreated material into photopolymerized prepolymer material as the conveyor moves the prepolymer past the prepolymerization chamber. The processor(s) can control operations of the conveyor, the prepolymerization chamber, or both, to alter operations in response to a detected system event. Each polymerization station can include a light source, such as an LED array, that irradiates material. Each light source can be in a lid of the prepolymerization station. When operation of one polymerization station is halted, such as for maintenance, then the system can increase the light source intensity of the remaining polymerization stations, slow the conveyor speed, or both.

Abstract: A system including groups of illuminators configured to provide adaptive irradiance within the ultraviolet spectrum to remove pathogens, particles, and anthropogenic activity from an air mass of a physical environment based on a detection of a presence of and amount of pathogens, particles, and anthropogenic activity in the air mass.

Abstract: A sterilizing assembly for on-demand dispensing of sterilized writing utensils includes a housing, which defines an interior space. The housing has a first slot and a second slot positioned in a top and a bottom thereof, respectively. A sanitizing unit and a dispensing unit are engaged to the housing and are positioned in the interior space. The sanitizing unit sterilizes a contaminated writing utensil inserted into the housing through the first slot. The dispensing unit will dispense a sterilized writing utensil from the housing through the second slot. A sensor engaged to the bottom of the housing detects a presence of a hand proximate to the second slot. The sensor is operationally engaged to the dispensing unit and thus is positioned to signal the dispensing unit to dispense the sterilized writing utensil.

Abstract: An autoclave includes a case, a chamber disposed inside the case, a cassette disposed inside the chamber, and a plurality of light sources mounted inside the cassette.

Abstract: An illumination system includes a gas containment vessel configured to contain a gas. The illumination system also includes one or more pump sources configured to generate one or more pump beams. The illumination system includes an ozone generation unit including one or more illumination sources. The one or more illumination sources are configured to generate a beam of illumination of an energy sufficient for converting a portion of diatomic oxygen (O2) contained within the gas containment vessel to triatomic oxygen (O3). One or more energy sources are configured to ignite the plasma within the gas contained within the gas containment vessel via absorption of energy of the one or more energy sources by a portion of the triatomic oxygen, wherein the plasma emits broadband radiation.

Abstract: A portable sanitizing system for rapidly dispensing reusable finger coverings for handling contaminated surfaces in a sanitary fashion. A battery operated ultraviolet LED system sanitizes finger coverings which are customized for use with the sanitizing device. The sanitary finger coverings can be rapidly applied to the user's hand without contamination, using a single hand. Repeated sanitization and utilization are similarly rapid and easy. The sanitizer can be carried by the user or attached to their uniform. The reusable finger covers can be custom fit to a variety of hand sizes and are optimally designed to work with the sanitizing device. The implement aids in grasping surfaces securely without touching the surface with the user's bare fingers.

Abstract: An airflow sterilizing unit configured to airflow in a heating, ventilation, and air conditioning (HVAC) system is disclosed. The airflow sterilizing unit includes a portion of a duct at least partially lined with an ultraviolet (UV) reflective material, a plurality of hollow structures positioned within the portion of the duct, each comprising an external UV reflective surface, and at least one array of UV light emitting diodes (LEDs) mounted on a surface of at least one of the plurality of hollow structures. The sterilizing unit is configured to replace a section of an existing duct in the HVAC system such that air within the HVAC system passes through the sterilizing unit before exiting from one or more vent.

Abstract: A sterilizer for a vehicle includes: a module bracket fixed to an interior component of a vehicle; a slider slidably mounted on the module bracket; a module case connected to the slider; a sterilization module disposed within the module case and configured to radiate ultraviolet rays to an outside; and a motor fixed to the module bracket to drive the slider by a passenger's request.

Abstract: There is provided an apparatus, system and method to treat air and surfaces using light. The apparatus comprises a hollow body having an inlet and outlet for passage of air. Treatment lamps are body mounted for movement between an air treatment position to treat air inside the body and a surface treatment position to treat air/an external surface. When installed in a room environment, the apparatus, via a system controller, operates in an air treatment mode, a surface treatment mode or an off mode. Room sensors (e.g. interlock and presence) communicate with the controller and the controller permits or prevents operation in the surface treatment mode accordingly. If any interlock sensor senses an open position or the presence sensor senses a presence (e.g. motion), operation in the surface mode is prevented. A remote control communicates with the controller to select an operating mode.

Abstract: An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The outdoor heat exchanger assembly may be disposed in the outdoor portion and include an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and include an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion and directed at the indoor fan to transmit an ultraviolet light emission thereto.

Abstract: An animal repelling device includes a container, an end cap provided with through holes, a liquid level sensor and a wireless communication component. An animal repelling method includes: injecting volatile liquid for repelling animals in the container, and closing the end cap, in which the volatile liquid is vaporized to the outside; and detecting the liquid level through a liquid level sensor, and transmitting liquid level information to a wireless communication component, and controlling the vaporization of the volatile liquid via the wireless communication component. the vaporization of drugs for repelling animals can be intelligently controlled; and the remaining amount of the drugs for repelling animals can be automatically monitored to replenish the drugs in time.

Abstract: A cryopump includes at least one cryopanel including a photocatalyst layer on a surface thereof, and an excitation light source that is disposed so as to irradiate the photocatalyst layer with excitation light that activates the photocatalyst layer.

Abstract: A system (10) for removing airborne pathogens can include a housing (1, 4, and 6) having at least one or more chambers, a bipolar ionizer (9A), at least one particle filter (8), and an ultra violet light radiation source (5A) residing in at least one or more chambers. Furthermore, the embodiments can include the use of a ventilation system which can include a fan (3) that draws in surrounding air at an intake (7A) and directs the surrounding air towards the at least one particle filter, the bipolar ionizer, and the ultra violet light radiation source before the ventilation system expels the surrounding air drawn through the intake through an exhaust vent (7B).

Abstract: The present disclosure is directed to a uniquely designed air-purification, remote HVAC management, and indoor air quality monitoring system including an online cloud-based platform. In various embodiments, the air purification system is configured for generating a photocatalytic oxidation reaction so as to purify the air traversing through an HVAC unit. The system may be a locally based system that utilizes a specially designed Artificial Intelligence platform for optimizing energy efficiency, enthalpy, and air quality based on continual sensor data collection, indoor air quality measurements, and dynamically adjusted operating parameters. A fault indicator and communications display may also be included.

Abstract: A filter configured to photocatalytically oxidize target compounds in an air stream includes a support structure having an air permeability greater than approximately 155 CFM/ft2 and a photocatalyst supported by the support medium.

Abstract: An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The outdoor heat exchanger assembly may be disposed in the outdoor portion and comprising an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and comprising an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion and directed at the indoor heat exchanger to transmit an ultraviolet light emission thereto.

Abstract: An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The sterilization light assembly may be disposed within the housing to transmit an ultraviolet light emission thereto. The sterilization light assembly may include a support board, an ultraviolet C (UVC) light source, and a lens casing. The UVC light source may be mounted to the support board and configured to emit radiation between 200 to 280 nanometers. The lens casing may be disposed over the support board and seal the UVC light source to prevent moisture from contacting the UVC light source.

Abstract: Systems and methods for providing ultraviolet (UV) sterilization, disinfection and decontamination of electronic gaming machines (EGMs), gaming chips, dice, playing cards, currency, TITO tickets, etc. The ultraviolet sterilization, disinfection and decontamination may include a singular or plurality of UV lamps of any type or style or UV LEDs or RGB-UV LEDs or any type or style of UV LEDs of at least such wavelengths to be effective in at least partially reducing or eliminating viruses or the like. The UV sources are mounted on, in or proximate to a variety of gaming devices or equipment such as EGMs, mechanical gaming machines, chip trays, chippers, dice holders, automatic card shufflers, bill validators, currency counting devices, currency dispensing devices, printers, magnetic card readers, playing card and currency sterilization, disinfection or decontamination storage mechanisms, ATMs, redemption machines, promotional kiosks, etc., or similar devices used in other industries.

Abstract: The present invention provides a photolytic converter for converting reactant molecules in a fluid sample into product molecules by photolytic dissociation with electromagnetic radiation. The converter has a reaction chamber in communication with one or more electromagnetic radiation sources, an inflow conduit for conveying the fluid sample into the reaction chamber, and an outflow conduit for conveying the fluid sample out of the reaction chamber into a receptacle, wherein at least one of the first and outflow conduits extends into the reaction chamber. The receptacle can comprise detection means for generating a signal indicative of a concentration of product molecules in the processed fluid sample.

Abstract: A filtering facepiece respirator decontamination device includes an enclosure defining a UV irradiation chamber, at least one UV lamp positioned in the irradiation chamber, a moveable drawer comprising a platform for positioning a respirator, wherein the moveable drawer can move to a closed position in the respirator positioned on the platform is located in the irradiation chamber, a switch for detecting that the drawer is in the closed position, and a controller for activating the at least one UV lamp based on the switch detecting that the drawer is in the closed position.

Abstract: An electrical capacitance volume tomography sensor for use in high temperature, high pressure applications for measuring or imaging a flow within the sensor, the sensor comprising an outer pressure vessel, a plurality of electrodes placed within the outer pressure vessel, a plurality of threaded studs, wherein one of the threaded studs is attached to one of the plurality of electrodes, a coating or layer is placed on the plurality of electrodes for electrically isolating the plurality of electrodes, a plurality of holes in the outer pressure vessel for allowing terminal connections to the plurality of electrodes within the outer pressure vessel, wherein each of the plurality of holes accepts one of the plurality of threaded studs, and a plurality of gaskets, where one gasket is placed at each of the plurality of holes to seal the pressure at each of the holes in the outer pressure vessel by placing one gasket concentric around one threaded stud and conforming each gasket between a back of an electrode and the

Abstract: The invention relates to the detection, assessment and mitigation of harmful water-borne bacteria such as cyanobacteria. Multiple apparatus embodiments and variations are described. One apparatus can apply at least one of UV-C irradiation, microbubbles containing ozone and ultrasonic sound to mitigate the harmful water-borne bacteria. The systems and methods of the invention can be applied to bodies of water, including fresh water and salt water, and can be applied to wastewater treatment. The systems and methods of the invention can be used to reduce the concentration of algae directly and can be used to reduce the concentration of nutrients in water that algae use to grow. Methods of mitigation of the harmful bacteria are described that do not involve the introduction of chemicals into the environment.

Abstract: A lighting device that comprises a housing, a first visible light source, a second visible light source, an air filter, an airway, and an air circulation mechanism for each airway. The first visible light source contributes to the light output of the device, whereas the second visible light source is responsible for germicidal irradiation by activating a visible-light activatable photocatalytic coating on the air filter. The airway has an air inlet and an air outlet. The air circulation mechanism sucks an ambient air through the air inlet, forces the air through the air filter, and releases the air through the air outlet. The air filter traps airborne particles. The second visible light source is disposed adjacent to the air filter and activates a photocatalyst material in the antiviral photocatalytic coating. Airborne microbials trapped by the air filter are decomposed by the activated photocatalyst material in the antiviral photocatalytic coating.

Abstract: A device is provided for disinfecting water of a swimming pool, which includes an inlet for water from the swimming pool and an outlet for the water, an ozonation device, and a mixing section for ozone-containing water, wherein the ozonation device includes at least one UV light source for generating ozone, and an admixing unit for admixing the ozone to the water of the inlet, and the mixing section comprises a housing connected to the inlet, wherein the UV light source is arranged within the housing to emit UV light into the housing interior. The housing has deflecting surfaces for water protruding into the housing interior, which ensure a meandering flow within the housing. The device enables improved disinfection and can be designed to be more space-saving and visually appealing than conventional devices.

Abstract: A sanitizer using radiation comprises a hollow housing with an aperture, the housing being generally opaque to the radiation utilized. Mounted to the interior surfaces of the housing are radiation sources that produce radiation when powered. In operation, multiple objects to be sanitized are placed within the interior and the radiation sources powered, thereby sanitizing by radiation any pathogens present on the objects be irradiated. An easily adjustable shelving system that is substantially non-opaque to the radiation utilized, such as wire shelving with minimal opaque surfaces, may be used to support the objects to be sanitized. Depending on size, the portable box allows for multiple objects to be sanitized at the same time. The sanitizer in certain embodiments includes a plurality of UVC radiation sources mounted in the interior of the housing so as to surround the object to be sanitized on multiple sides.

Abstract: A gas processing device includes: a casing that includes a first end having a first opening region constituting an intake port, a second end having a second opening region constituting an exhaust port, and a main body portion on the inside of which is formed a hollow portion; a discharge lamp that has a tube body which is disposed in the hollow portion and which has a shape extending in the first direction, a first electrode, and a second electrode, the discharge lamp that emits ultraviolet rays from the tube body; a power supply unit arranged outside the casing; and a first power supply line and a second power supply line that are wired so as to pass through a side closer to the first end than the main body portion, and that electrically connect the power supply unit to the first electrode and the second electrode.

Abstract: The present invention relates to a method and apparatus for preventing bacterial cross-contamination between a user's personal item and a bacterially sensitive environment. More particularly, the present invention is directed to a method and apparatus for sanitizing a user's hands and cell phone prior to the user entering into a sterile operating room, thereby minimizing the introduction of contaminants via the cell phone.

Abstract: A flash lamp system provides flashes to a bottom side of a conveyor to disinfect the conveyor while the conveyor is transporting products on a top side of the conveyor. The flashes are provided to discontinuous segments of the conveyor such that a portion of the conveyor is treated with each revolution, but a controller causes the entire length of the conveyor to be disinfected over multiple revolutions. The controller can respond to changes in speed and detected levels of disinfection. The disinfection system can be used in many applications, such as the transporting of fresh or frozen food products.

Abstract: A sterilizer may include: a first pipe having an inner wall with a light reflecting property; a second pipe disposed in the first pipe so as to pass fluid therethrough and formed of a light transmitting material; and a plurality of UV LEDs arranged on the inner wall of the first pipe and configured to irradiate sterilization UV light onto the fluid.

Abstract: A refrigerator includes a cabinet coupled to one or more doors forming a storage compartment. The refrigerator additionally includes a first fan assembly positioned on an interior surface of a first cabinet wall, and a second fan assembly positioned on the interior surface of a second cabinet wall. The first and second fan assemblies each include: two or more circulation fans; a filter coupled to a photocatalyst to form an activated filter; and a plurality of UV LEDs positioned to project light on the activated filter. An air circulation path is configured to direct air born bacteria and particulate matter within the storage compartment contemporaneously into the first and second fan assemblies using the two or more circulation fans and circulate filtered air into the storage compartment through the activated filter disposed in the air circulation path.

Abstract: An exposure cell and method for treatment of carbon monoxide poisoning in the blood of a living body by removal of a portion of blood from the body, placing the portion in the exposure cell, exposing the portion in the cell to light of wave length and intensity that causes dissociation of carbon monoxide from hemoglobin, and returning the portion to the body. The exposure cell has an exposure zone outside of the body, that holds the portion, and a window that allows light from outside the zone to enter the zone to disassociate carbon monoxide from the portion. Oxygen is injected into the zone and carbon monoxide is removed from the zone.

Abstract: A pellicle for a lithographic device and a method for its manufacture. The pellicle comprises a carbon-based film having a thickness of between 0.1 nm and 10 nm and at least one layer of cross-linked aromatic molecules, heteroaromatic molecules, or polyyne-based or polyene-based amphiphilic molecules. The carbon-based film has a periphery and a center portion and the center portion is transparent to the radiation beam. A support structure is coupled at least to the periphery of the carbon-based film.

Abstract: A device for processing bulk grain products includes a housing with a plurality of modules stacked on top of each other; wherein the modules are at an equal distance from each other, such that the distance is adjustable, wherein each module has horizontal ultraviolet lamps, whose position relative to each is adjustable, and each ultraviolet lamp has a protective coating for protection from mechanical damage and a protective shield above it; each module having an ultraviolet intensity sensor aimed at one of the plurality of lamps; each module having a device for cleaning the ultraviolet lamps from contamination; and each module including a vibrating mechanism; wherein the bulk grain products move from top to bottom, past the ultraviolet lamps under a force of gravity. Optionally, the device may include a bipolar ionizer and/or an infrared heater. Optionally the protective coating is made of polytetrafluoroethylene.

Abstract: A UV reactor for treating water, the reactor includes a UV source, a tube positioned around the UV source, a surrounding structure coaxially surrounding the tube, a flow path positioned between the tube and the surrounding structure for the flow of water to be treated, and a diffusive surface positioned around the surrounding structure to reflect UV light from the UV source back into the flow path.

Abstract: Treatment of carbon monoxide poisoning of a body by removal of a portion of the blood from the body, placing the portion in an exposure cell, exposing the portion in the cell to light of wave length and intensity that causes dissociation of carbon monoxide from hemoglobin, and returning the portion to the body. The intensity and wave length of the light is sufficient to dissociate a therapeutically-effective amount of carbon monoxide from the hemoglobin in the blood. The blood is circulated from and to the body through a concentric double lumen cannula. The wave lengths of the light are 540 and/or 570 nanometers. The cell exposes the blood to at least 9.5 Joules of dissociative light per milliliter of blood, and least 9.5 Watts of dissociative light per milliliter of blood per second. Oxygen is provided to, and the dissociated carbon monoxide is removed from the system.

Abstract: A device for neutralizing pathogens on a tactile surface arranged to be touched or contacted by a user's hand includes a housing adapted to be attached to a support surface, such as a wall of an ATM, generally above the tactile surface. A UV light source is provided on the housing arranged to irradiate UV radiation on the tactile surface. A personnel detector is provided for detecting the presence of a person in sufficient proximity to the tactile surface to touch or contact the tactile surface. Control circuitry, preferably in the form of a programmable controller, is provided for normally energizing the UV light source and de-energizing the UV light source upon detection of a user in sufficient proximity to allow a user to touch or contact the tactile surface. A white light source is provided to illuminate the tactile surface when the UV light source is de-energized.

Abstract: An air sanitation and purification photocatalytic panel includes a frame that has a photocatalytic scrim positioned within the frame and a plurality of UV light sources positioned within the frame proximate to the photocatalytic scrim. The frame is made of a metal and/or alloy. The photocatalytic scrim is a pleated structure. Each of the plurality of UV light sources are oriented towards the photocatalytic scrim. The photocatalytic scrim includes a substrate a photocatalytic coating adhered to the substrate. The frame and photocatalytic scrim are oriented parallel to each other. The UV light sources illuminate the photocatalytic coating and initiate a photocatalytic reaction therein. During operation, the panel is positioned perpendicular to the airstream such that the airstream is forced through the substrate.