The present invention provides a volatile component releasing apparatus capable of accurately releasing volatile components. The present invention relates to a volatile component releasing device (S) disposed in an air stream, which accommodates a volatile source (k1) holding a volatile component and extends from the upstream side to the downstream side of the air stream. A body (10), a first valve (11) for changing the opening of the upstream opening of the cylinder, a second valve (12) for changing the opening of the downstream opening of the cylinder, and a first valve Drive means (13, 15) for driving the second valve, and a fluid which is disposed on the upstream side of the second valve and introduces a part of the airflow to the first valve side and allows the remainder of the airflow to pass therethrough. Prepare. The split fluid is, for example, a resistance plate (8) that has a plurality of through holes (82) that allow the remainder of the airflow to pass therethrough, and that increases the air pressure on the upstream side rather than the downstream side. [Selection] Figure 1【課題】揮発成分の放出を的確に行える揮発成分放出装置を提供する。【解決手段】本発明は気流中に配設される揮発成分放出装置（Ｓ）であり、揮発成分を保持した揮発源（ｋ１）を収容すると共に気流の上流側から下流側へ延在する筒体（１０）と、筒体の上流側開口の開度を変更する第１バルブ（１１）と、筒体の下流側開口の開度を変更する第２バルブ（１２）と、第１バルブと第２バルブを駆動する駆動手段（１３、１５）と、第２バルブよりも上流側に配設され、気流の一部を第１バルブ側へ導入させると共に気流の残部を通過させる分流体とを備える。分流体は、例えば、気流の残部を通過させる貫通穴（８２）が複数配設されており、下流側よりも上流側の気圧を高める抵抗板（８）である。【選択図】図１
