Patent ID: 7497898

Claim:
An ionizer comprising: a housing including one or more electrode-attaching portions; a positive electrode needle and a negative electrode needle disposed in the electrode-attaching portions, respectively, in parallel with each other for generating an ion; an air-blowing outlet being open in the electrode-attaching portion at a position between the positive electrode needle and negative electrode needle; a protection cover for covering both the positive electrode needle and negative electrode needle, and the air-blowing outlet; and a spatial portion spreading inside the protection cover-across both of the positive electrode needle and negative electrode needle, and the air-blowing outlet, wherein the protection cover comprises an air-blowing hole, and two air-flowing-out holes, and wherein the air-blowing hole-is positioned in front of the air-blowing outlet for blowing air blown out from the air-blowing outlet toward a workpiece, and the air-flowing-out holes are respectively formed at positions corresponding to the positive electrode needle and negative electrode needle, and allow the air blown out from the air-flowing outlet and diffused in the spatial portion, to flow out to an outside of the protection cover along the positive electrode needle and negative electrode needle, respectively.