Device for obtaining electrolysis products from an alkali metal chloride solution where a cathode circuit contains a circulation pump with an overflow device for the return flow of pump liquid, which continuously secures the forced circulation of the catholyte via a heat exchanger, a cathode compartment and a capacitive separator for separating the hydrogen from the catholyte. In the discharge of the hydrogen from the capacitive separator for separation of the hydrogen from the catholyte, a cooled humidity separator is installed, the condensate collection container of which is connected via a dosage pump with the freshwater feed to the mixing device of the freshwater flow with the gaseous oxidant mixture.