Abstract: A device for hemodialysis provided with: an artery needle, a set of hoses with a bubble trap, a blood pump, a hemodialyzer, a venous needle, a container of a dialyzing solution, a conduit for the dialyzing solution, a unit of sensors for measuring the temperature, conductivity, and pressure of the dialyzing solution, a pump for the dialyzing solution, a hemoglobin detector, an electronic unit and an alarm unit providing audible and visual warning signals. The dialyzing solution is heated to a suitable temperature by a heat exchanger which is supplied with waste heat from the cooling system of an automobile engine. The device may be used in a home and for weekend dialysis, as well as for emergency mobile use.