ilver ion inorganic antibacterial. Mildew. Deodorization. The fresh product is a non-toxic, harmless inorganic antibacterial agent. By silica. Calcium phosphate. Silver. Zinc. Magnesium and other active metal ions. Harmless to the human mouth and nose and skin. This product to Escherichia coli. Staphylococcus aureus. Candida albicans. Mold antibacterial efficiency of more than 99.9%. Antimicrobial efficacy and safety - the product industry by FDA