Design background: I am an engineer with many years of design and production experience. Seeing the process of every product from production to sales, I feel extremely happy and successful. I am also the father of two children. From the moment the child was born, I deeply realized my wife's hardships and worries about the disinfection of baby products such as bottles, pacifiers and clothes. In 2019, a sudden COVID-19 made countless families suffer from pain and death. The traditional alcohol disinfection method is not suitable for carrying because of its flammable and explosive characteristics. The ultraviolet lamp widely used in shopping malls, canteens, hospitals and other public places, although the effect is very good, but because of the large size, service life, mercury and other reasons, it can not be carried. In view of the above background, as a person with certain design and production resources, I think I should take on the responsibilities of an engineer, a father of a child, and an ordinary people under the epidemic situation, and design an intelligent, practical, portable and safe sterilization product for the society, so as to make mothers less worried and the world less panic, For the society to share a meager force. Product summary: ultraviolet radiation can destroy the DNA and RNA molecular structure of bacteria and viruses to achieve the effect of sterilization and disinfection. Because ultraviolet radiation can't directly reach the skin and eyes, our products are designed with a lot of humanized protection measures.