[Physiotherapeutic apparatus as a source of air ionization in the rooms]

The extent of the air ionization in rooms accomodating physiotherapeutic apparatus is assessed. Subject to determination are main characteristics of ionization, such as: the unipolarity coefficient, the ionic air pollution factor, the life time of ions. Formulas for calculating mean concentration of ions and of the ionization energy liberation are cited. Recommendations for reducing the ions concentration are given.