PROBLEM TO BE SOLVED: To provide an air sterilization device that has improved a contact efficiency of air with an electrolylic water on a gas-liquid contact member by almost evenly applying the air to the entire gas-liquid contact member.SOLUTION: The gas-liquid contact member 53 held by a base substrate 83 is gapped thereon and is disposed to face a wind direction plate 84 with a through-hole 85, and air suctioned from a suction grille 12 is sent toward the wind direction plate 84 so that the suctioned air contacts with the electrolylic water flowing down the gas-liquid contact member 53 flowing in the gap 86 through the through-hole 85.COPYRIGHT: (C)2012,JPO&INPIT【課題】気液接触部材の全面に当該空気を略均等に当てて、当該気液接触部材上での空気と電解水との接触効率の向上を図った空気除菌装置を提供すること。【解決手段】基体83に保持された気液接触部材53に隙間をあけて貫通孔85を有する風向板84を対向配置し、吸込グリル12から吸い込んだ空気を風向板84に向かって送り、貫通孔85を通じて隙間86に流入した空気を気液接触部材53上を流下する電解水と接触させた。【選択図】図3