The present invention is a possible widespread delivery ions, without using a filter or the like can be blown ion wind that ozone concentration was lower in the ejection port vicinity, providing ion wind generator. And A discharge electrode comprises an electrode pair having the opposing electrode, and is configured by generating a potential difference to generate ions, ozone and ion wind by corona discharge between the discharge electrode and the counter electrode and the counter electrode, the opening serving as inlet ports, contraction of the constriction inner diameter is the smallest of the counter electrode, the inner diameter of the counter electrode in the direction from the opening side to the constriction is reduced in diameter and the diameter, ion wind, which is formed by the reduced diameter portion has an internal space capable of passing, diameter R of the opening and radial R of the stenosis is a R > R , wherein the discharge electrode, the inner wall surface of the counter electrode and the is configured to be narrowed portion and the counter Are ion, ozone or ion wind generator.BACKGROUND 3【課題】イオンを広範囲に送達可能であり、フィルタ等を用いずとも噴出口近傍でのオゾン濃度が低められたイオン風を送風可能な、イオン風発生装置の提供。【解決手段】放電電極と、対向電極と、を有する電極対を備え、前記放電電極と前記対向電極との間に電位差を発生させてコロナ放電によりイオン、オゾン及びイオン風を発生させるよう構成されており、前記対向電極は、吸気口となる開口部と、当該対向電極の内径が最小となる狭窄部と、当該開口部側から当該狭窄部へ向かって当該対向電極の内径が縮径する縮径部と、当該縮径部により形成されるイオン風が通過可能な内部空間を有し、前記開口部の径Rβ及び前記狭窄部の径Rαが、Rβ>Rαであり、前記放電電極は、前記対向電極の内壁面及び前記狭窄部と対向し得るよう構成されているイオン、オゾン又はイオン風発生装置。【選択図】図3
