Chemical Composition: Chlorine Dioxide. Appearance: White Round Block. Effective Substance Content: 98%. Content: 8%. PH Value Usage Range: 1111. Features: Physical sterilization is safe and secure. The sterilization rate is as high as 99.999%. Powerful sterilization cares for hands. Through the active sterilization gene of electrochemical generation technology to pass through the cell membrane and destroy nucleic acid protein to make it die and ablate rapidly. Continuous and effective sterilization. Weak acid formula is mild and skin-friendly. Suitable for children, pets, and the elderly. No peculiar smell and no pungent nose. Mild and non-irritating. Effective in preventing bacterial diseases and dealing with various viruses. The scope of use is very wide. Condition: New. Origin: China. Package Included: 200 effervescent tablets.