There is a variety of sources of non-ionizing radiation (NIR) in physiotherapy: pulsed magnets, d'Arsonvale devices, equipment for microwave and high frequency therapy, optical sources (UV, IR and visible), lasers. This creates big difficulties to make precise exposure assessment on the workplaces. Most of the equipment emits electromagnetic radiation above the exposure limits. The best evaluation of the exposure requires individual assessment. At EBEA 2003 Meeting in Hungary we presented a method of individual exposure to non-ionizing radiation of the medical personnel in physiotherapy concerning the risk evaluation process. The method is based on the individual exposure assessment. The individual is a person - physician or nurse servicing N devices and treating M patients during a working shift with duration T (h). The devices are emitting NIR of different frequency ranges thus requiring different exposure assessment for each frequency range. For the exposure evaluation we used different quantities depending on the distances from the emitter to the object. The wave impedance is the most important parameter specifying the difference between the near field and the far field zones of exposure. The energy load of the human organism is defined as a derived quantity of energy falling at E H S on human body during the official working shift. Specific absorption rate (SAR) is the specific value of power absorbed by the recipient; and specific absorption SA is the specific value of the respective absorbed energy according to the calculated SAR. The two types of quantities - WE, WH and WS on the one side, and SAR, SA on the other do not differ substantially in conditions of air equivalent environment and a human body situated in it. SAR is introduced