This device can quickly reproduce the natural cold and warm cloud and fog environment on the experimental platform, and is used for studying the physical mechanism of cloud and fog, verifying weather modification technology, and evaluating the fog and weather resistance of materials and whole machines in industries such as aerospace, automotive, and electronics. Support the mixing of pure water, salt spray, or polluted gases to simulate oceanic, acidic, or urban haze. Real time monitoring of 12 parameters including temperature, humidity, air pressure, droplet size distribution, visibility, etc. Used for geography and physics laboratory classes; Performance degradation evaluation of automotive lighting fixtures, drones, and 5G antenna covers in dense fog.