It is best to use a safe and non-toxic disinfection method for the disinfection of canteens. It is recommended to install a DCW hypochlorous acid generator. This equipment uses salt and water to electrolyze to generate a non-toxic and harmless hypochlorous acid solution. The hypochlorous acid solution with different concentrations is used for soaking and washing vegetables, cleaning and sterilizing tableware, spraying and disinfecting space environment, and wiping and disinfecting tables and chairs on the ground. It can quickly and widely kill various bacteria and microorganisms by relying on the oxidation of hypochlorous acid, and can be completely degraded after sterilization without generating.