The starting point of my design is to redesign the existing product based on the post-epidemic era to make different functional definitions and styling changes.The scientific and technical issues, functional layout distribution, target population and usage scenarios were all well thought out before making the choice.Secondly, this paper focuses on the existing market and the pain points of disinfection products in public places and points out that different disinfection methods face different effects. In addition, reasonable solutions to the different pain points are identified. The future trends and applications of disinfection products in public places are also presented.By taking into account the existing information and the future design, we redesign the disinfection process in public places and provide a reasonable psychological analysis of the population to create safer and more secure sanitary conditions for people in the post-epidemic era.