A method for producing a mist in a spray head (1), especially for fire-fighting purposes or for humidification of intake air, in which method a medium, preferably an extinguishing medium, is supplied under pressure into the chamber (2) of the spray head via an inlet (3) and through at least one first channel (4) into at least one nozzle (5), which comprises at least one channel zone (6) narrower in a direction transverse to the flow of medium and after that in the direction of flow of medium a channel space (7) wider in a direction transverse to the flow of medium than the narrow channel zone, from which wider channel space the mist of medium generated is passed out of the spray head via an outlet orifice (8). The mist of medium is influenced, at least by increasing its momentum and/or reducing its droplet size, by supplying into the channel space (7) at least one second medium, preferably a gas.
