A discharge device for discharging a fluid product or a powder product, a discharge head (1) having a discharge port (10) formed at an end of a hollow sleeve (3), and a rest position in an air chamber (22) And an air delivery device (20) for generating an air flow during operation of the discharge device, and a container (30) for storing a single product. And the mechanical opening system (61, 62) and the discharge device to the user by transitioning to a second state that is in a visible state at the rest position before the operation and in an invisible state after the operation. A notification unit (100； 50) for notifying that the air chamber has been operated, and a pusher element (25) fixed to the piston (21) and pressed by the user during operation, wherein the air chamber (22) Piston (21 Has a cylindrical body that slides inside in an airtight state, and the container (30) is connected to the air delivery device (20) to hold the product in the container (30) until discharging. An air inlet (31) in which a product holding member (40) is disposed, and a product outlet (32) connected to the discharge port (10) and closed by press-fitting a closing element (50). The mechanical opening system (61, 62) cooperates with the closing element (50) during operation of the discharge device to mechanically push out the closing element (50) from a closed position, (1) has a skirt part (5) arranged around the air chamber (22), and the pusher element (25) is axially moved from the skirt part (5) in a rest position before operation. After the operation, the skirt part (5) Disposed inside said pusher element (25) has the notification unit (100), the notification unit (100), prior to actuation is visible, after working an invisible discharge device. [Selection] Figure 3流体製品又は粉体製品を吐出する吐出装置であって、中空スリーブ（３）の端部に形成された吐出口（１０）を有する吐出ヘッド（１）と、空気チャンバー（２２）内で休止位置と吐出位置との間を摺動するピストン（２１）を有し、前記吐出装置の作動中に空気流を生成する空気送出器（２０）と、１回分の製品を収容する容器（３０）と、機械式開封システム（６１、６２）と、作動前の前記休止位置では可視状態である第１状態にあり、作動後には不可視状態である第
