<p>An ion generator (100) is provided with an ion generation element (1) that is configured of an induction electrode (12) and a discharge electrode (11) for generating ions between itself and the induction electrode (12). The ion generation element (1) is surrounded with a metal (5), and a voltage that has the same polarity as the generated ions is applied to the metal (5). With this ion generator (100), the ions generated by the ion generation element (1) can be supplied to a room space at high concentration without disappearing in the vicinity of the ion generation element (1).</p>
