Device (100) with a pressure chamber (101) and a micropump (102) in fluid communication with the pressure chamber (101), the pressure chamber (101) having a gas-carrying area (103) and a liquid-carrying area (104), the micropump ( 102) is designed to generate a pneumatic pressure within the gas-carrying region (103) which is less than a fluid pressure of a liquid (105) flowing through the liquid-conducting region (104), and at least one gas-permeable and liquid-impermeable separating element (106) Sectionally separates the gas-carrying area (103) and the liquid-carrying area (104) from one another, characterized in that the micropump (102) is arranged on the pressure chamber (101) and the liquid-carrying area (104) has a hose line (101) running inside the pressure chamber (101). 301).
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