PROBLEM TO BE SOLVED: To provide an electrostatic atomizing device which enables an introduction tube to be connected to a target section in a simple manner without causing positional deviation and highly efficiently supplies electrically charged water particles through the introduction tube to the target section.SOLUTION: The electrostatic atomizing device includes an ejection port 10 ejecting the electrically charged water particles generated by discharge electrodes 1 and the introduction tube 11 having an upstream end thereof connected to the ejection port 10, wherein the introduction tube 11 has, in the middle of the flow path thereof, a bellows structure 14 in which small-diameter parts 12 and large-diameter parts 13 are arranged contiguously in an alternating manner； and the inner diameter r2 of each small-diameter part 12 is made larger than the inner diameter r1 of the part upstream of the bellows structure 14. Thus, the introduction tube 11 can be connected easily to the target section through the effective use of the bellows structure 14, and also, the flow of air inside the introduction tube 11 is less likely to be disturbed.【課題】目的箇所にまで導入管を位置ずれなく簡単に接続させることができ、且つ、この導入管を通じて帯電微粒子水を目的箇所にまで高効率で供給することのできる静電霧化装置を提供する。【解決手段】放電電極１で生成した帯電微粒子水を放出する放出口１０と、放出口１０に上流端が接続された導入管１１とを備えた静電霧化装置において、導入管１１は、小径部分１２と大径部分１３とが交互に連続する蛇腹構造１４をその流路途中に有し、小径部分１２の内径ｒ２を、蛇腹構造１４よりも上流側の部分の内径ｒ１よりも大きく設けたものとする。これにより、蛇腹構造１４を有効活用して、導入管１１を目的箇所に簡単に接続させることができ、しかも、この導入管１１中の空気の流れには乱れが生じ難くなる。【選択図】図１
