Cold fog is a fountain system that can generate fine water mist. It converts water into extremely fine droplets through a high-pressure system, forming a misty effect suspended in the air. The diameter of these water droplets is usually in the micrometer range, so they can float for a long time, creating a dreamlike and misty atmosphere. The design inspiration for the fog Fountain comes in part from the misty scenery in nature, and similar effects are simulated through technical means to add a soft and mysterious feeling to the urban environment. This type of device is commonly found in public squares, parks, or commercial spaces, mainly used for environmental cooling, increasing air humidity, and creating ornamental landscapes.