The disclosure relates to a swing door operator (10) for moving a swing door leaf (20) in a swing path between an open and closed position, the swing door operator (10) comprising at least one drive unit (100) being arranged to move the swing door leaf (10) between the open and closed position, the swing door operator (10) further comprising a control unit (103) being operatively connected to the drive unit (100) and a first sensor (106), wherein the first sensor (106) is configured to identify objects in front of a first side (201) of the swing door leaf (20), the control unit (103) is configured to react if an object is identified by the first sensor (106) in a safety zone (30) in front of the first side (201) of the swing door leaf (20), the control unit (100) is configured to adapt the size/area of the safety zone (30) based on the swing path of the swing door leaf (20) and the position of the swing door leaf (20). The disclosure further relates to a swing door and a room with a swing door.