Abstract: A movable LED lamp that emits in the UV wavelength for germicidal purposes. The LED lamp can be mounted near the ceiling such that air in a room can be disinfected. Movements of the LED lamp sweeps the air near the ceiling in ultraviolet germicidal irradiation, which kills both bacteria, virus, fungi, and other bioaerosols. A poorly ventilated room can be disinfected more readily with such a sweeping system.

Abstract: A new disinfecting sanitary system utilizing an UV-C LED irradiation source is developed for disinfection of pathogens generated by toilet flushing. The disinfecting sanitary system includes a plurality of disinfection devices mounted on a hollow member of the sanitary device, and each of the disinfection devices is configured to emit a beam for disinfection; a control circuit coupled to the plurality of disinfection devices. Each of the plurality of disinfection devices including an ultraviolet light (UV) radiation apparatus configured to project UV radiation towards a target area for disinfection, and the control circuit controls the plurality of disinfection devices to project the UV radiation.