PROBLEM TO BE SOLVED: To smoothly recover water collected by gas-liquid separation.SOLUTION: The air-water separator is equipped with an air cleaning part 2 having an air-water separation part 102 for separating air and water and the air-water separation part 102 has at least one air-water separation plate 5. Hydrophilic treatment is applied to the surface of the air-water separation plate 5.COPYRIGHT: (C)2003,JPO【課題】 気液分離で捕集された水をスムースに回収する。【解決手段】 気液を分離する気水分離部102を備えた空気清浄部2と、気水分離部102は少なくとも1枚以上の気水分離板5を備え、気水分離板5の表面は親水処理を施したことを特徴とする気水分離装置。