Abstract: A mist preventing cover for an electrode has an upper end which surrounds and is sealed to an electrode above the surface of the electrolyte in an electrowinning cell to thereby form a substantially closed chamber above the electrolyte surface. The lower end of the cover extends below the electrolyte surface and prevents escape of bubbles generated at the surfaces of the electrode, while permitting the passage of electrolyte to the electrode. The bubbles rise to the surface of the electrolyte, where they burst and generate a mist in the closed chamber formed by the electrode cover. The mist contains droplets having substantially the same composition as the electrolyte, as well as gaseous components including water vapor, gas generated by the electrode, and entrapped ambient air.