A photoioncatalytic module and an air supply device are provided. The photoioncatalytic module includes a first fixing base, a second fixing base, a first fixing plate, a second fixing plate, a light source for driving photoioncatalytic reaction and a photocatalytic filter. The first fixing base has an opening. The second fixing base is located at one side of the first fixing base and has a recess. The first fixing plate is fastened between one end of the first fixing base and one end of the second fixing base. The second fixing plate is fastened between the other end of the first fixing base and the other end of the second fixing base. Two ends of the light source which drives photoioncatalytic reaction are respectively located in the opening and the recess. The photocatalytic filter is located between the first fixing base and the second fixing base and surrounds the light source which drives photoioncatalytic reaction. The photoioncatalytic module and the air supply device can effectively remove air pollutants and surface contaminants.一種光水離子化模組及送風裝置。光水離子化模組包括第一固定座、第二固定座、第一固定板、第二固定板、光水離子化反應驅動光源與光觸媒濾網。第一固定座具有開口。第二固定座位在第一固定座的一側,且具有凹槽。第一固定板固接在第一固定座的一端與第二固定座的一端之間。第二固定板固接在第一固定座的另一端與第二固定座的另一端之間。光水離子化反應驅動光源的兩端分別位在開口與凹槽中。光觸媒濾網位在第一固定座與第二固定座之間,且環繞光水離子化反應驅動光源。上述光水離子化模組與送風裝置可有效地去除空氣污染物與表面污染物。100‧‧‧光水離子化模組102、104‧‧‧固定座106、108‧‧‧固定板110‧‧‧光水離子化反應驅動光源112‧‧‧光觸媒濾網114、116、120‧‧‧鎖固件118‧‧‧燈座122、124‧‧‧緩衝件126‧‧‧開口128‧‧‧凹槽130‧‧‧通氣孔132、134‧‧‧限位塊136‧‧‧安裝孔138、140‧‧‧定位槽
