The public places represented by stations and airports serve the floating population of different genders, ages, occupations, nationalities or nationalities, and different health conditions. They are the most direct “Windows” to show the image of a city. As a supporting facility for urban public services, its drinking water facilities not only need to avoid health and safety hazards brought by the floating population, but also need to use high-quality services to reflect the appearance of the city, and the requirements for various indicators of products and services are very strict.