PHMG is stable properties, excellent performance of being easily soluble in water; can be used at room temperature; With feature of low effective concentration; fast action speed. PHMG has no side effects; non-corrosive; colorless and odorless; non-flammable and non-explosive, safe to use; Polyhexamethylene guanidine is a stable polymer, it is not volatile and does not decompose; Be stored for a long time, and after the polyhexamethylene guanidine solution is dried, it can form a The thin polymer layer of the disinfectant can maintain the best state of the object after sterilization and prevent secondary pollution of the object.