A device that produces thick vapour that mimics the appearance of fog or smoke is known as a fog generator, fog machine, or smoke machine. Although smaller, more affordable fog machines are increasingly popular for personal use, professional entertainment applications of this artificial fog still predominate. Additionally, fog machines are employed in a number of industrial, educational, and even some military applications. Typically, mineral oil is atomized of Fog Fluid are vaporised to produce fog. Inside the fog machine, this liquid, also known as "fog juice," vaporises or atomizes. The vapour condenses into a thick, visible fog as it leaves the fog generator and comes into contact with the colder outside air. The pump machine is the heated fog machine that is used the most frequently. A fluid reservoir, an electric pump to transport the fog fluid, and a heat exchanger to vaporise the fluid make up the most basic types of this kind of equipment. Other features may be added to more complex models, such as timer modules, variable speed pumps to control the output of fog, or parts for remote control and status monitoring. Some producers have created add-ons and liquids that, when used with a standard heated pump machine, produce effects of fog