▎ 摘　　要

NOVELTY - The air purifier has a housing for providing an air path. A photocatalyst module is mounted in the air path, and includes a UV point light source for emitting light along a light path. A photocatalyst net device includes a spatially curved element that is mounted in the light path, and has a configuration defined by a specific contour line of equal intensity of the emitted light. An electrostatic dust collector is mounted in the air path, and includes a first electrode device (71) and a second electrode device (72), which has contrary electrical polarities to generate an electric field, and both of which has graphene on surfaces. The UV point light source is a UV LED, and the spatially curved is an arched net element made of a titanium dioxide-based or zinc oxide-based material. A graphene oxide solution is applied onto metal filter carrier. USE - Photocatalyst air purifier used in home appliances. ADVANTAGE - The inner surface of the tubular light-reflecting chamber is highly reflective to reflect the light emitted by the UV LED inside the chamber to increase the light amount reaching the photocatalyst net device, and thus improves the performance of the photocatalyst module for air purification. The high electrical conductivity of graphene facilitates dispersion of the external high-voltage power on the surface of the nanoscale rods to avoid unevenly discharging. The designs result in good photocatalytic reaction efficiency, easy cleaning of the electrostatic dust filter, and the durability of the discharge electrode, and improvement of discharging efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for providing electrostatic-dust-collection function in an air purifier. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of an electrostatic dust collector. First electrode device (71) Second electrode device (72)