A smoke machine is a device that produces a dense vapor resembling smoke, often used in theatrical productions, concerts, and events. It works by heating a special fluid, usually a mixture of water and glycol or glycerin, which creates a fog-like effect when vaporized. This effect enhances lighting and creates an atmospheric environment. Smoke machines are commonly used in theater and film to create dramatic scenes or simulate effects like fire or fog. They are also popular in nightclubs and at parties to add visual interest. Safety precautions are important, as the vapor can irritate the eyes and respiratory system if used excessively.