A multifunctional light source assembly and a multifunctional desk lamp are disclosed. The multifunctional desk lamp includes a base assembly, a lamp head assembly, and a lamp arm assembly; one end of the lamp arm assembly is connected with the base assembly, and the other end is connected with and supports the lamp head assembly; the lamp head assembly is internally provided with the multifunctional light source assembly, the multifunctional light source assembly includes an illumination LED chip, a plant grow light LED chip and an ultraviolet LED chip. The illumination chip, the plant grow light chip and the ultraviolet chip are respectively connected to a controller, which respectively controls the three chips, through the on and off of currents, so that functions such as illumination for reading and writing, sterilization, plant growth assistance can be achieved.

In an air-outlet unit that forms an air outlet of an air conditioner in an automobile, a light-emission control unit controls, in accordance with the airflow rate of the air conditioner that is obtained from an air-conditioning control device of the automobile, an LED driving unit that drives an LED array in such a manner that the amount of light that is emitted from the LED array and that activates a photocatalytic filter increases as the airflow rate of the air conditioner increases. The light that is emitted from the LED array is visible light, and some of the light that is reflected by the photocatalytic filter transmits to an area outside of the air-outlet unit by passing through fins that adjust the direction and the flow rate of the air blown by the air-outlet unit.

A vehicular sanitization control device includes a rechargeable internal power source, a deep ultraviolet light source, a first display light source configured to display an operating state of the deep ultraviolet light source, a second display light source configured to display a state of charge of the internal power source, and a control unit configured to control a power supplied to the deep ultraviolet light source, a charging operation of the internal power source, and displays of the first display light source and the second display light source, respectively.

An air conditioner unit may include a housing, an outdoor heat exchanger, an indoor heat exchanger, a compressor, a sterilization light assembly, and a controller. 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. The controller may be in operable communication with the indoor fan and the sterilization light assembly. The controller may be configured to initiate a sterilizing operation. The sterilizing operation may include directing activation of the indoor fan to motivate air through the indoor portion, detecting activation of the indoor fan to motivate air through the indoor portion, and directing activation of the sterilization light assembly to transmit an ultraviolet light emission within the indoor portion based on detected activation of the indoor fan.

An air conditioner unit may include a housing, an outdoor heat exchanger, an indoor heat exchanger, a compressor, a sterilization light assembly, and a controller. 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. The controller may be in operable communication with the indoor fan and the sterilization light assembly. The controller may be configured to initiate a sterilizing operation. The sterilizing operation may include directing activation of the indoor fan to motivate air through the indoor portion, detecting activation of the indoor fan to motivate air through the indoor portion, and directing activation of the sterilization light assembly to transmit an ultraviolet light emission within the indoor portion based on detected activation of the indoor fan.

A system includes a plurality of carbon dioxide sensors each located in one of a plurality of spaces in a building and a plurality of air purification systems each located in one of the plurality of spaces and each including a UVC light source arranged within an internal space of a purification chamber and adapted to irradiate the internal space with UVC, an airflow system arranged to introduce environmental air from outside of the air purification system into the internal space of the purification chamber and expel purified air from the purification chamber back outside of the air purification system wherein each of the plurality of air purification systems is operable to purify air in response to an indication that an associated carbon dioxide sensor has sensed a level of carbon dioxide in excess of a predetermined threshold.

A system includes a plurality of carbon dioxide sensors each located in one of a plurality of spaces in a building and a plurality of air purification systems each located in one of the plurality of spaces and each including a UVC light source arranged within an internal space of a purification chamber and adapted to irradiate the internal space with UVC, an airflow system arranged to introduce environmental air from outside of the air purification system into the internal space of the purification chamber and expel purified air from the purification chamber back outside of the air purification system wherein each of the plurality of air purification systems is operable to purify air in response to an indication that an associated carbon dioxide sensor has sensed a level of carbon dioxide in excess of a predetermined threshold.

A sanitisation system comprising a chemical vaporising apparatus for storing and vaporising a sanitising chemical com- position. The chemical vaporising assembly comprising a housing configured to receive and retaining one or more sanitising chemical composition containing cartridges, a vaporiser located within the housing, the vaporiser configured to receive and convert a sanitising chemical composition in the chemical containing cartridges into a vapor, and an air purifier assembly located within the housing, the air purifier assembly configured to purify the air by removing vaporised sanitising chemical composition from the air and maintain a low humidity environment.

An electronic device includes a housing, a photocatalyst filter, at least one first sensor provided in the housing, a blower fan configured to introduce air into the housing, a light source configured to emit light to the photocatalyst filter, and a processor configured to control the blower fan and the light source, determine a degree of contamination of the photocatalyst filter based on a difference in sensor values between the at least one first sensor provided in the housing and at least one second sensor outside of the housing or a rate of change in sensor values between the at least one first sensor provided in the housing and the at least one second sensor outside the housing, and recycle the photocatalyst filter based on the determined degree of contamination of the photocatalyst filter.

The present device provides a safe, effective means of mobile ultraviolet (UV) disinfection. A control board within the main body of the device receives data from sensors that may variously measure orientation and speed of the main body as it moves along various surfaces for disinfection. In response to such data, the control board may brighten, dim, or completely shut off UV light-emitting diodes (UVLEs), both to prevent over- and under-exposure of the materials being disinfected, and to prevent a user from unsafely using the device.