Air purification device

Provided is an air purification device capable of efficiently purifying air and capable of being miniaturized. An air purification device (10) is provided with: a housing (20) having an air intake port (24) and an air exhaust port (26); a filter unit (12) which includes a photocatalyst filter (40) and is housed in a unit housing part (28) in the housing; a light source (14) that irradiates the photocatalyst filter with light; and a blower fan (16) that generates an air flow that passes through the unit housing part. The photocatalyst filter is formed in a wave shape in which mountains and valleys extending in a first direction are alternately arranged in a second direction orthogonal to the first direction, and is housed in the unit housing portion such that an air flow flows in the first direction. 提供一种能够高效地净化空气且能够小型化的空气净化装置。空气净化装置(10)具有:壳体(20)，其具有吸气口(24)和排气口(26)；过滤单元(12)，其包括光催化剂过滤器(40)，收容在壳体内的单元收容部(28)中；光源(14)，其对光催化剂过滤器照射光；以及送风风扇(16)，其产生通过单元收容部的空气流。光催化剂过滤器形成为沿第一方向延伸的山部和谷部在与第一方向正交的第二方向上交替地排列的波状，以空气流沿第一方向流动的方