The fog cannon machine can not only reduce the dust concentration at the construction site, protect the physical health of construction workers, and reduce the occurrence of respiratory diseases, but also prevent the pollution of surrounding residential areas, schools, commercial areas and other environmentally sensitive areas by dust, which is conducive to achieving green and civilized construction and enhancing the social image of the enterprise. Summer road cooling: In high-temperature weather, the temperature of urban roads (especially asphalt roads) can exceed 50℃. After the fog cannon sprays atomized water on the road surface and its surrounding areas, the local temperature can be reduced by 3-5℃ through evaporation cooling, while alleviating the "urban heat island effect".