Fog Machine: Creates dense smoke

Haze Machine: Creates a very fine mist

Dry Ice Machine: Creates low lying "Heavy Smoke" (Antari Ice 101-Low Lying Fog Machine)

Theatrical smoke and fog, also known as special effect smoke, fog or haze, is a category of atmospheric effects used in the entertainment industry. The use of fog can be found throughout motion picture and television productions, live theatre, concerts, at nightclubs and raves, amusement and theme parks and even in video arcades and similar venues. Recently smaller, cheaper fog machines have become available to the general public, and fog effects are becoming more common in residential applications, from small house parties to Halloween and Christmas.

Theatrical fog and theatrical fog machines are also becoming more prevalent in industry. Common popular applications for theatrical fog in include environmental testing, such as HVACinspections, as well as emergency personnel and disaster response training exercises.

Militaries have historically used smoke and fog to mask troop movements in training and combat, and the techniques and technology used for generating smoke and fog in theatre and film are similar.