To provide a cartridge for sustained release of salt, increasing the chloride ion concentration in raw water in a system wherein hypochlorous acid is produced by electrolyzing water in an electrolysis unit, provided that the chloride ion concentration is increased when the raw water supplied to the electrolysis unit has low chloride ion concentration, by diffusing chloride ions from the cartridge housing NaCl crystals, and to provide an electrolytic water generator or an electrolytic water atomizer equipped with the cartridge.

The cartridge for sustained release of salt includes a housing part 100A formed therein for housing crystals 103 of an inorganic salt chemically combined with Cl^-, such as NaCl, and is equipped with an aperture 101 at top thereof and a floating valve member 102 that descends to open the aperture 101 in air and ascends to close the aperture 101 in water. When the aperture 101 is closed by the floating valve member 102, a gap passage is formed around the floating valve member 102, thereby enabling diffusion of ions such as chloride ions (Cl^-) from the aperture 101, provided that the ions are derived from an aqueous solution wherein the NaCl crystals 103 are dissolved.