JEM ProFog Quick Dissipating Fog Fluid Box of 4x5LJEM Pro Fog Fluid, Quick Dissipating is a water based, fast dissipating fog fluid specially designed for use in JEM fog machines. In a studio or theatre environment, a lighter, faster dispersing fog is often preferred. JEM Pro Fog Fluid, Quick Dissipating offers a less dense effect compared to the benchmark JEM Pro Fog Fluid and is, therefore, less likely to interfere with video and film camera focusing. This particular product is sold in a pack of 4