A UV C light source including a UV C bulb adapted to emit and project UV C light at a wavelength and an interchangeable UV C light modifier through which at least a portion of the UV C light emitted from said UV C bulb is projected. The UV C light modifier may be reflective, such as a reflector, perforated, holographic material, or mechanical modifier such as a barn door. The UV C light modifier might produce a narrow pattern, circular pattern, flat pattern, or asymmetrical pattern or other desired geometric pattern, or upper air pattern. The UV C light modifier is easily removed and interchanged or may be selectable such as by receiving a base UV C fixture including the UV C light source of the present invention and selecting a desired light modifier.

A portable illumination apparatus having a sterilizing function, the illumination apparatus including: a lamp unit which includes an illuminating light element on an interior side of the lamp unit; a base coupled to the lamp unit by a hinge; and a sterilizing light element located on the interior side of the lamp unit. When the lamp unit is in a closed position with the base, the lamp unit and the base meet at a boundary section to form a cylinder with a top and a bottom. Also, the boundary section is substantially mirror-symmetrical and at least partially U-shaped such that the lamp unit has a longest height line and a shortest height line. Additionally, the illuminating light element is arranged on or along the longest height line and the hinge is formed about the shortest height line.

The present disclosure relates generally to air filtration devices. More specifically, but not exclusively, the present disclosure relates to an air filtration device comprised of a copper (or copper alloy) medium to inactivate airborne pathogens (e.g., viruses, bacteria, coronaviruses, COVID-19, etc.) and mitigate harmful exposure to said pathogens. The copper medium is a porous mesh (i.e., copper wool) that is positioned within or on a structure to provide support. The air filtration device may be positioned in an HVAC system such that an air stream flows through the copper medium to inactivate airborne pathogens, such as viruses, in the air stream. The air filtration device may be used in combination with, or in addition to, existing HVAC system conventional air filters (e.g., HEPA filters). The air filtration device includes a copper medium positioned on a face mask to inactivate airborne pathogens during respiratory processes.

Disclosed is an ultraviolet ray emitting diode lighting device. The disclosed invention comprises: an ultraviolet ray emitting diode for emitting ultraviolet rays; a substrate on which an ultraviolet ray emitting diode is mounted; a base on which a space for accommodating the substrate is formed and an electrode pin electrically connected to the substrate is installed; and a cover, which is provided to surround the ultraviolet ray emitting diode and the substrate and is coupled to the base, wherein the base includes a support guide fitted in the substrate to support the substrate on the base so as to restrict movement of the substrate.

The present invention relates to a device for applying medical and cosmetic radiation to a human body or to parts thereof. Said radiation is preferably optical radiation. The device according to the invention comprises at least one first illuminant for producing the medical and cosmetic radiation. The device also comprises a first air flow for cooling an illuminant and a second air flow for cooling the human body or parts thereof. The device comprises at least one air-conditioning system, which is fluidically connected to the second air flow and designed for the air-conditioning treatment of the air flow. The device is characterized in that the device also has at least one disinfecting chamber, which is fluidically connected to the second air flow and is designed to physically disinfect the second air flow. The invention also relates to a method for operating such a device and to a corresponding disinfecting chamber.

The present invention relates to a filter medium (10) for air and/or water cleaning, comprising a semiconductor photocatalytic material (14) and a light energy source (15) for radiating light provided to activate photocatalytic reactions of the semiconductor photocatalytic material (14). The light energy source (15) is configured as a support (16) for the semiconductor photocatalytic material (14). The filter medium (10) can be incorporated into a filter unit (100).

Electrical connectors and fixtures, and more particularly, electrical plug and socket combinations allowing quick connection and mounting of electrical fixtures are provided with a disinfection feature for disinfecting air and/or surfaces. Additionally, lighting fixtures include or are retrofitted to provide both lighting and disinfection functions. The disinfection feature can be provided by any suitable source of UV radiation, such as an LED array. The emitted UV radiation is UV-A or FAR UV-C so that disinfection can occur regardless of whether a human is exposed to the emitted UV radiation or the emitted UV radiation is UV-C so that disinfection should only occur if there is no human exposure to the emitted UV radiation. Some electrical connectors and fixture can provide both types of emitted UV radiation, which are selectively actuatable.

The present invention relates to an air treatment system (1) comprising a sterilization unit (2) arranged for producing ozone, a photooxidation unit (3) arranged for subjecting an air flow to a photooxidation process, and a control unit (4) arranged for in a first operational mode directing an air flow through the sterilization unit (2), and in a second operational mode directing an air flow through the photooxidation unit (3). By providing an air treatment system (1) which can operate in two different modes i.e. in a photooxidation or a sterilization mode, it is possible to specifically remove the undesirable pollutants in the air, e.g. removing either gas-phase

A photocatalytic structure that can uniformize ultraviolet lights is provided. The photocatalytic structure includes a housing, a groove formed at a top of the housing, multiple grille slices being engaged with two sides of an inner wall of the groove, multiple grille passages being formed between every two adjacent grille slices, metal meshes disposed on both top and bottom of the grille slices, and a UVC-LED light board disposed at a side of the grille slices. The photocatalytic structure stacks the grille slices to form the grille passages. The UVC-LED light board makes grille passages to reflect the ultraviolet light. More uniform lights are formed at both upper and lower sides of the grille passages. The UVC-LED light board close to the metal meshes ensures the uniform lights to be emitted onto a gap plane with a smaller refraction angle. Therefore, everywhere on the metal meshes are fully illuminated.

A UV ceiling light including a mounting box, a mounting board, driving power supply, a UV module, a grating component and a cover plate. There is a mounting space inside the mounting box, the bottom of the mounting box is provided with avoiding holes connecting to the mounting space, the mounting board is provided on the upper end of the mounting box in a dismountable way, and the driving power supply is provided inside the mounting space; the upper end of the UV module passes through the avoiding hole and extends into the mounting space, and the UV module electrically connects to the driving power supply; the grating component is provided on the lower surface of the mounting box, the grating component includes several separating plates that are horizontally circular and provided around the UV module, and each two adjacent separating plates form a light outlet in an enclosing way.