Several manufacturers of theatrical fog fluid have developed specially formulated mixtures specifically designed to be used with CO2, intended to provide thicker, more consistent fog effects. Effect duration is determined by the heating cycle of the theatrical fog machine and consumption rate of liquid CO2.
Theaters utilize custom-made mixtures of haze fluid from various manufacturers, specifically designed for use with CO2, in an effort to produce thicker, more consistent fog effects. The longevity of these fogs is determined by the thermal cycle of the fog machine and the consumption rate of liquid CO2.