Tasteless. According to relevant public information inquiries, Heyue and Chuangke spray are colorless and odorless. They use membrane-wrapped sterilization technology. They do not participate in the metabolism of the body and do not produce new substances. Their safety is reassuring, so they have no smell. Heyue Hechuangke spray is a patented organic compound substance. It is the world's leading new disinfection and sterilization substance, which can effectively kill bacteria, viruses, fungi, spores and other harmful microorganisms.