There are several types of smoke machines that can be suitable for different situations. A haze machine creates a transparent mist, allowing light effects to pass through, which is perfect for use in conjunction with a light show. A heavy smoke machine produces thick, dense smoke that sinks to the floor, often achieved by cooling the smoke with dry ice. This gives the smoke a liquid and mysterious appearance, perfect for Halloween. A regular smoke machine uses water-based propellant as the smoke fluid, which is heated and then sprayed out as concentrated smoke that evenly spreads throughout the room between the floor and ceiling. CO2 jets are often used in large clubs and concerts, emitting a powerful jet stream of carbon dioxide smoke. It creates a strong gust of wind, emits visible smoke, and makes a significant sound, making it a guaranteed mood enhancer when used with proper timing.