Battery endurance: 2-4 hours. Automatically control the wind speed and pressure difference,and record the working status throughout the process. The door and platform can be designed as a lifting system and can be positioned at any position. AGV can be configured for automatic positioning and unmanned automatic operation. Online monitoring systems for dust particles,airborne bacteria,etc.can be configured. A horizontal moving module or a robotic arm can be configured for automatic loading or unloading of materials.