Abstract: A transportable treatment recliner continuously adjustable in height and from the seating to the lying position, and rotary about the vertical axis, for medical, particularly dental or surgical care, characterized in that the recliner can be disassembled manually without tools into its individual parts or assemblies which can be placed in a transport container for saving space, with the component parts or assemblies being connected or fastened to the recliner upper portion by loosenable clamp and plug connections and the recliner upper portion consisting of three hinged parts to be laid flat. A pneumatic spring, which can be locked by a control lever, may be fastened to the rear side of the back part. This spring is hinged on its other end to an extension on the seating part. Between the seating part and the foot part there is a click-stop adjustment actuated via a clamp lever. The pneumatic spring may be held on the extension by an angled pin with turnable safety tab.