Ozone is a broad-spectrum, efficient and fast fungicide. It can kill various germs, virus rapidly, remove the toxic substances in the water, and reduce the organic substance in the water. ozone gas produces a certain concentration of ozone in water after soluble in water, which has stronger and faster sterilization ability than ozone gas with quick decomposition, no pollution and residue. Ozonated water can replace the traditional peracetic acid, chlorine, hydrogen peroxide, potassium permanganate disinfectant, etc.