A portable device (2) for providing a vacuum for medical vacuum treatment of wounds on the body of a person or of an animal has a holding or carrying device (10) with two connecting sections (12, 14) on the housing, which are disposed on the housing part (4) for connection to two connecting sections of a holding or carrying strap on the strap, wherein the holding or carrying strap comprises a third strap-side connecting section, which is spaced apart from the opposing ends of the holding or carrying strap and from the first and second strap-side connecting sections disposed there, and arranged between these ends, for connection to one of the connecting sections on the housing and/or to a strap-side connecting section disposed at the end.