A method and an apparatus for industrial and professional electrostatic painting, in accordance with ionization parameters predetermined according to the type of material to be painted and implemented using an electrostatically charged pressurized carrier fluid (whether positively charged, negatively charged, or in the neutral plasma state) combined to a flow of atomized liquid paint or powder paint, comprising a step of oxygen- enrichment of the paint-carrier fluid in order to obtain a higher degree of electrostatic grip of said carrier fluid.