This roof air conditioner is designed specifically for recreational vehicles, campers, trucks, construction vehicles, and other special vehicles and equipment. In high humidity or high temperature environments, using high air volume/cooling mode can achieve the highest efficiency. The roof air conditioner has the characteristics of high cooling performance, strong seismic and impact resistance, and can be widely used in various vehicles and lifting equipment. Widely applicable: Suitable for construction machinery, industrial equipment, agricultural machinery, light and heavy trucks, cranes, forklifts, mobile workspaces, and any other equipment that requires 3-10 cubic meters of refrigeration space.