PROBLEM TO BE SOLVED: To provide a harmful substance decomposition and removal device capable of reducing the concentration of volatile organic compounds in a room and floating bacteria and viruses with high accuracy.SOLUTION: A harmful substance decomposition and removal device comprises: photocatalyst carriers 3a, 3b having a photocatalyst 16 held at least near the surface of a sheet-like porous body formed by entangling fibers a light source 2 for irradiating required light to the photocatalyst carriers and gas passages 6, 7, 8 provided along the surface of the photocatalyst carriers. The gas passages are configured to include at least photocatalyst carriers arranged opposite to each other, and the photocatalyst carriers have a predetermined light reflectivity and light permeability. Light passing through one of the photocatalyst carriers and light reflected on the photocatalyst carriers are irradiated to the surface of the photocatalyst carriers facing each other.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】室内における揮発性有機化合物の濃度や、浮遊細菌・ウイルスを、精度高く低減させることができる有害物質分解除去装置を提供する。【解決手段】繊維を交絡させて形成されたシート状多孔質体の少なくとも表面近傍に光触媒16を保持させた光触媒担持体3a,3bと、上記光触媒担持体に所要の光を照射する光源2と、上記光触媒担持体の表面に沿って設けられたガス流路6, 7, 8とを備え、上記ガス流路は、少なくとも対向して配置される光触媒担持体を備えて構成されているとともに、上記光触媒担持体は、所定の光反射率と光通過性とを有し、一の光触媒担持体を通過した光、及び上記光触媒担持体の表面で反射された光を、対向する上記光触媒担持体の表面に照射するように構成されたものである。【選択図】 図1
