The two chambers, and a liquid impermeable membrane and gas permeability of at least one said chamber, separated from each other by (one or more) film, the present invention is at least (s 1) of the film at least one side is structured, at least one of the branching structure and the channel, the branch path is formed in particular on the film by the structure, 500μm or less, 350μm or less, preferably, the walls of the structure, more The ratio of the surface area of the membrane including at least one of the branch structure and the channel has a spacing of 150μm or less, with the interval, on gas transport system, which accounts for at least 50% of the total surface area of the membrane, preferably. [Selection] Figure Figure 1本発明は、少なくとも2つのチャンバと、少なくとも1つの気体透過性且つ液体不透過性膜とを含み、前記チャンバが、膜(1又は複数)により互いに隔てられ、前記膜(1又は複数)の少なくとも片側が構造化され、前記構造により前記膜上にチャネル及び分岐構造の少なくともいずれか、具体的には被分岐経路が形成されており、前記構造の壁が、500μm以下、好ましくは350μm以下、より好ましくは150μm以下の間隔を有し、前記間隔を有する前記チャネル及び分岐構造の少なくともいずれかを含む膜の表面積の比率が、前記膜の全表面積の少なくとも50%を占める気体輸送装置に関する。【選択図】図1
