The object of the invention is a method for producing salt dust (9f) that is used in salt therapy and a salt dust generator. A salt dust generator is used in the method. The salt dust is generated when the salt particles that are moved in an air flow collide with each other and with certain parts of the salt dust generator and by regulating the speed of the air flow (7a - 7d) and thus changing its capability to carry the salt particles. It is possible to increase the amount of the collisions of the salt particles and thus make the formation of the salt dust (9f) more efficient using obstacles, for instance nets (8) that are placed into the salt dust generator vessel (1).
