Patent ID: 8080214
Filing Date: 2011-12-20
Classification: A61L,B01D,B01J,F24F

Abstract:
1. An air cleaner comprising: a cleaning chamber through which air can pass; an ultraviolet light source provided in the cleaning chamber; an air flow generator to generate an air flow in the cleaning chamber by passing air through the cleaning chamber; and photocatalyst granules including a photocatalytic apatite, held in the cleaning chamber, and displaceable by the air flow; wherein a packing ratio of the photocatalyst granules in the cleaning chamber is 50-80%; wherein the photocatalytic apatite has a chemical structure in which part of calcium of calcium hydroxyapatite has been replaced with titanium; wherein the photocatalyst granules include carrier particles and the photocatalytic apatite fixed on the carrier particles; wherein the carrier particles are composed of a foamed resin; and wherein the carrier particles each having a surface formed with a light reflecting film, and the photocatalytic substance is fixed over the light reflecting film.