Since their introduction in the 1970s, fog machines have remained among the most widely used pieces of special effects equipment in the entertainment industry; including stage, film and television, and theme parks. Before the fog machines we use today, fog and smoke effects were created by burning flammable materials like mineral oil and even used tires. Using a professional fog machine is a much safer and more efficient way to create a smoke effect on set. https://hubs.ly/Q01pxl4q0