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.

A multi-functional air purification filter includes: a breathable support layer; a mesh layer provided on the breathable support layer; and a filter layer provided on the mesh layer, wherein at least a portion of the multi-functional air purification filter has a plurality of bends, and the mesh layer includes a coating layer of at least one of a photocatalytic material, an adsorption material, or a sterilizing material.

A light system includes a main body defining an internal chamber and a lighting assembly secured to the main body, wherein the lighting assembly comprises at least one light unit configured to emit light. The light system further includes a fan configured to generate an airflow and an airflow circuit configured to direct the airflow out of the main body of the lighting assembly. The light system also includes a tilt detection unit configured to detect a tilt angle of the lighting assembly and to generate a control signal to cause a speed of the airflow generated by the fan to change based at least on a detected change in the tilt angle of the lighting assembly.

The invention is directed to a system for preventing or minimizing the spread of viruses, and to the prevention or minimization of the spread of viruses in indoor air, including one or more radiation sources (10) in a room which divide the room into smaller segments using UV-C light walls, a sensor system for detecting a movement or a presence of one or more persons (P) in the room, and a controller (16) that is designed to at least partially switch the one or more radiation sources (10) on or off as a function of at least the presence of the person (P).

According to the invention, the one or more radiation sources (10) are designed to generate a wall-type radiation field (10b) that acts as a UV-C wall, so that the room or rooms is/are divided into smaller room segments, which prevents or minimizes the spread of viruses due to the fact that the viruses are deactivated by the UV-C light, and the controller (16) is designed to at least partially switch off the radiation source (10) in question if the movement data detected by the sensor system indicate a likelihood that one of the persons (P) would like to pass through the radiation field (10b) in question.

Surface disinfection for enclosures with Ultra-Violet (UV) light and illuminating such enclosures with visible light. Particular embodiments relate to limiting the transmission of viruses and bacteria in the interior space of an aircraft, such as a lavatory, through the use of UV light application, while providing visible light to passengers of such lavatory, both in a safe and compliant manner. This disclosure provides a lighting system and method that combines a visible light emitter and a UV light emitter into a single light system module. Although UV light is a preferred method of neutralizing pathogens, its use is not safe for human exposure. Accordingly, the disclosed lighting system is capable of detecting the presence of an occupant within an enclosure or defined space and only allows the visible light emitter to function (and prevents the UV light emitter from functioning) while people or animals are present within the electromagnetic range for the lighting system. The lighting system can then detect the absence of an occupant within an enclosure or defined space, prior to activating the UV light emitter, and once absence is detected, the UV light emitter can be activated by a controller.

A porous carbon material composite formed of a porous carbon material and a functional material and equipped with high functionality. The porous carbon material composite is formed of (A) a porous carbon material obtainable from a plant-derived material having a silicon (Si) content of 5 wt % or higher as a raw material; and (B) a functional material adhered on the porous carbon material, and has a specific surface area of 10 m.sup.2/g or greater as determined by the nitrogen BET method and a pore volume of 0.1 cm.sup.3/g or greater as determined by the BJH method and MP method.

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.

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.

The present disclosure discloses disinfection equipment for automatically cleaning up sweat. The disinfection equipment includes a supporting plate; one side of the supporting plate is fixedly connected with a vertical plate; one side of the vertical plate is fixedly connected with an air purifier; an upper end of one side of the supporting plate is connected with an inflation connection seat; and an upper side of the supporting plate is provided with a deflation connection seat.

Embodiments of the present disclosure include a method for destroying pathogens in irradiating a region at a radiation having a wavelength between 200-300 nm via one or more lamps operatively connected to a respective cavity in responsive to processing a sequence associated with an inputted address. Embodiments also include controlling an operating status of the one or more lamps via a control center by sending a first command and sending a second command. Embodiments also include determining: a time frame of when the one or more lamps irradiate the region; and determining if there may be a motion.