The application field of hypochlorous acid varies according to the production mode, raw materials, pH value and concentration. DCW hypochlorous acid can be widely used in various fields. This hypochlorous acid is a high concentration hypochlorous acid produced by electrolysis of salt and water. The concentration and pH value of available chlorine can be adjusted, which is non-toxic and harmless to human body. After sterilization, it can be completely degraded without residue, corrosion and irritation. Can be applied to all links needing disinfection and sterilization, and is efficient, safe and environment-friendly.