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.

An air enhancing device (1) for disseminating molecules and/or other substances into the air is disclosed comprising a base frame (5) configured to be fixedly mounted in a wall, panel, or furniture of a human accessible space, in particular in an in-wall box or an in-wall cavity in a wall of a building; a cartridge holder (7) attached to the base frame (5) and configured to receive a removable cartridge, the cartridge being designed to contain a fluid substance; and a fan and/or microblower configured to draw air into the air enhancing device (1) and expel air containing at least a portion of the substance out of the air enhancing device (1) into the human accessible space; and/or an emission module attached to the base frame (5) in fluid communication with the cartridge and configured to distribute a portion of the fluid substance into the air.

The purpose of the art is to treat the air via an air treatment machine. The invention consists of a base; major connector; pcb; dc motor; motor/modified scotch yoke mount; and modified scotch yoke. The base supports a decorative housing which can be made by the end user. The “modified scotch yoke/motor mount” is fastened by screws and nuts to the major connector which is attached to the base also by nuts and screws. Electrical and mechanical moving parts are fixed to the major connector of the battery operated device.

Air is treated by the contents of an aerosol spray can. The aerosol can is inserted through the bottom of the air treatment machine and secured in place by the major bracket screw cap. Once the aerosol spray can's nozzle is depressed by the modified scotch yoke, a vertical spray mist is expelled through the opening at the top of the decorative housing, thus treating the air in the surrounding environment.

An electronic scented candle is described that includes a movable flame-shaped component, a shell including an installation chamber, a fragrance container that is removably positioned inside the installation chamber and a scent chamber. An electric fan is positioned within the shell to drive the air into the scent chamber and a scent outlet coupled to the scent chamber to allow the fragrance material to leave the scent chamber and to reach an external environment of the electronic scented candle. The electronic candle also includes a receptacle for connecting a power cord on a bottom surface of the electronic candle. The bottom surface includes a plurality of protruding stands that provide a space to allow the power cord to be connected to the receptacle and be routed below the bottom surface.

Disclosed are devices, systems and methods for air purification in an airflow tract of vacuum cleaners. In some aspects, an air purification system for a vacuum cleaner comprises an ultraviolet (UV) light unit disposed in a first location within the vacuum cleaner along an airflow pathway, configured to emit UV light at air containing particles including dust, dirt, and microbes while the air containing the particles is flowing in the airflow pathway where the UV light unit is disposed; and a particle filter unit disposed in a second location within the vacuum cleaner along the airflow pathway, the particle filter unit comprising one or both of a high-efficiency particulate air (HEPA) filter and an active carbon filter.

Apparatus, methods and instructions for disinfecting air. The apparatus may include, and the methods may involve, a fixture. The fixture may include a germicidal light source. The fixture may include a fan. The fan may circulate air through a volume into which the germicidal light source propagates germicidal light. The light source may be configured to emit, upward from a horizontal plane, a beam that, absent reflection off an environmental object, does not cross the horizontal plane. The apparatus may include a shield that prevents light from the light source from crossing the horizontal plane. The sensor may face upward from the horizontal plane. The sensor may face downward from the horizontal plane.

A cartridge for a vehicle interior component configured to dispense scent from scent media may comprise a body comprising an inlet port and an outlet port and a chamber to contain scent media; and a valve assembly comprising an inlet valve, an outlet valve and a valve mechanism. The valve assembly may facilitate air flow across scent media in the chamber and may provide a seal to obstruct air flow in the chamber. The valve mechanism may comprise an inlet spring to actuate the inlet valve and an outlet spring to actuate the outlet valve. The inlet spring and the outlet spring may be configured to be compressed in alignment with a connector to facilitate air flow. The component may comprise a console, overhead console, floor console, center console, etc.

A bracket mounted on a car ventilation grille, in particular for fragrance carriers, consisting of a frame and fastening and stabilizing elements, characterized in that the frame is a U-shaped semi-closed structure provided with two arms, and the fastening and stabilizing elements are at least two sliding flexible fastening pads with a thickness less than or equal to the distance between the frame arms, at least one of which is applied to the first frame arm and at least one of which is applied to the second frame arm.

A hood for a sterilization system including a return line (132) to provide for airflow between first and second ends; a hood (116) having an opening situated in a top wall and configured to be coupled to a tube; and couplers (126) configured to couple the hood to adjacent ones of a plurality of support struts (114) to configure the hood to form an opening (128) leading to a cavity (129), wherein the cavity is configured to receive at least a portion of a head of a subject (101) receiving respiratory gas from a ventilator (170) such that the plurality of support struts are situated outside of the cavity, wherein the hood is configured to enable ambient air into the airflow while over the portion of the head of the subject.