Abstract: A liquid-accommodating container (8) for a device (2) providing vacuum for medical applications, in particular for the vacuum treatment of wounds in a human or animal body. The container (8) has two half-shell parts (20, 22), which are permanently joined to each other and bound the interior of the container in the joined state. A filter (100) lies against an inner region (106) of the half-shell part (22) facing away from a first housing part (4) on one side and against a sealing element (54) on the other side under axial stress in an axial direction (102). The sealing element (54) is attached to the half-shell part (20) facing the first housing part (4), wherein the axial stress is formed by the joining of the half-shell parts (20, 22) and associated deformation of the sealing element (54) by the filter (100).