High End Systems Cold Flow is a high-end device that harnesses a technique to create a low-lying fog effect. The Coldflow unit can convert immense volumes of fog into dense, pure white clouds of low lying fog, allowing for a wide range of special effects, from a continuous layer to a gigantic cloudburst. The Coldflow unit can produce outstanding results when paired with the Lightwave Research F-100 Performance Fog Generator and ATMOSPHERES Cold Flow Formula Lighting Enhancement Fluid.