The study examined separazione non-woven material obtained by the method of electrohidrodinamica hamowania from solutions of polysulfone in various solvents. The influence of the concentration and dynamic viscosity of spinning solutions on the electroforming process and the fiber diameter of non-woven materials is shown. The concentration dependences and ranges of changes in the dynamic viscosity that determine the nature of spinning and its transition from the process of electrospray liquid (ERW) to the actual process of electroforming fibers (EFV) are established. The possibility of predicting the fiber diameter and pore size of a nonwoven material is shown. It is established that the preferred solvents for the preparation of separation materials from polysulfone are dichloroethane, cyclohexanone and their mixtures.