The term “cryo” means very cold temperature. To produce fog, normal liquified gases are used. Instead of normal glycolbased fog (“Disco-Fog”), Cryo-Fog visualizes only the humidity of the air. This is the same effect, like opening the bathrooms´ window in winter and fog comes in or, as another example, like breathing out “clouds” in cold air. Since Cryo-Fog doesn’t bring in any humidity into the room-air, there is no condensity on walls or floors.

The colder the gas and the dampier the air of the location is, the more fog you can create. When the air gets warmer, the fog disappears immediatly.

Which liquified gases can I use?

You can use all non-toxic, non-flammable liquified gases for cryo-effects. The colder the gas, the better the fog. Liquid Helium seems to be perfect because of its temperature of –269°C, but it is very expensive. The best cost-efficiency has Liquid Nitrogen (called LIN or LN2, -196°C), Liquid Carbondioxyd (called LCO, -78°C, or Dry-Ice) and Liquid Air (called LAX, -186 °C).

Liquid Nitrogen
Pro: Huge pure white clouds of fog possible, good cost-efficiency, good disposability, non-toxic, no-smell, even in high quantities no harm since air contains nitrogen
Contra: higher material effort, not suitable for small-locations

CO2
Pro: less material effort to build system, good disposability
Contra: Much less fog than LIN since the higher temperature of only –78°C than –196°C of LIN, fog makes tired, in higher concentration toxic, use of gas-cylinders expensive and can only last for 35seconds per cylinder, fog smells fust, fog only greywhite, Dry-Ice Fog is always wet

Synthetic Air
Pro: can be used in small venues, On-Site-Production
Contra: through condensation of Liquid Oxygen raised fire-protection needed, On-Site-Production starts at € 100.000.-, bad disposability for mobil-services, needs very high standards of material