Patent ID: 11191863

Abstract:
An antiviral air-filtering lighting device includes an air-permeable lampshade, a visible light source, a driver, and an air circulation mechanism. The lampshade diffuses a visible light emitted from the visible light source and includes an air inlet port. The lampshade is coated with a visible-light activatable antiviral photocatalytic coating. The visible light source is disposed inside the lampshade to shine its light through the lampshade to activate the visible-light activatable antiviral photocatalytic coating on the lampshade. The air circulation mechanism sucks an ambient air from outside the lighting device, and forces the air through the lampshade. The lampshade traps airborne microbials on the surface having the visible-light activatable antiviral photocatalytic coating. A light emitted by the first visible light source activates a photocatalyst material in the visible-light activatable antiviral photocatalytic coating, and the airborne microbials trapped by the air filter are killed or deactivated by the activated photocatalyst material.