Patent ID: 9457120
Filing Date: 2016-10-04
CPC Classification: A61L,F24F,Y02A

Claim Text:
1. An air purifier comprising: an air sterilizing unit; an air blowing unit arranged such that air flows in the air sterilizing unit; the air sterilizing unit comprising: a housing comprising a box body; a substrate removably fixed in the housing; and a plurality of ultraviolet light emitting diode arranged on the substrate and emitting deep ultraviolet ray having wavelength of 200 to 350 nm; the housing comprising a sterilizing room; the sterilizing room being an inner space of the housing and facing a face of the substrate on which light emitting devices are arranged, and comprising an air intake opening and an air outlet opening; and the ultraviolet light emitting diode being arranged in a package having a structure such that light is emitted with strengthened directivity, and being arranged in the housing such that the deep ultraviolet ray is emitted toward inside of the sterilizing room, wherein (A) at least a part of an inner wall surface of the sterilizing room comprises an ultraviolet reflective material which may be covered with an ultraviolet ray transmitting material, and/or (B) one or more reflector plate which is a plate body is arranged and fixed in the sterilizing room wherein at least a part of the surface of the reflector plate comprises the ultraviolet reflective material; and the deep ultraviolet ray emitted from the ultraviolet light emitting diode passes through air in the sterilizing room and thereafter further passes through the air in the sterilizing room once or more, by being reflected on the inner wall surface which comprises the ultraviolet reflective material or on the surface of the reflector plate which comprises the ultraviolet reflective material.