The suction device provided in particular for medical and industrial applications, which is used to suction fluid and/or solid particles, comprises a first suction unit (1) designed as a jet pump, in particular as a Venturi pump or ejector pump, by means of which a first negative pressure can be achieved in a first connection line (11). According to the invention, a second suction unit (2) is provided as a displacement pump or blower pump, by means of which a second negative pressure can be achieved in a second connection line (21), wherein the first and the second connection line (11, 21) are connected to a suction line (31) directly or via a vacuum chamber (3), and at least one power supply device can be connected or is connected in such a way to the first and the second suction unit (1, 2) that both suction units (1, 2) can be operated together in order to together produce a third negative pressure in the vacuum chamber (3) or the suction line (31).
