CO2 and Entertainment in Denver and beyond

Carbon dioxide (CO2) has been used to amplify special effects in the entertainment industry for a long time. The gas is chilled to a liquid to quickly (and economically) create special effects like fog and haze. Most have seen haze effects at concerts to emphasize a spotlight or on TV for cloud effects.

Low-lying fog effects are achieved by using liquid CO2 that is usually placed in compressed cylinders. Low-lying fog is one of the effects of the liquid CO2 being used to decrease the temperature on theatrical fog which results in a denser fog that stays very low to the ground. Fog can also be created inexpensively by using dry ice. Technicians can heat water to boiling or near boiling temperatures in large vessels and then place 1-2 pieces of dry ice in those vessels. Carbon Dioxide cannot be maintained in a liquid form in atmospheric pressure therefore, it instantly becomes a gas. Typically there is a fan at the top of the container to push the CO2 into the desired direction for the fog effects.

Liquid CO2 alone can be used as an atmospheric fog in place of pyrotechnics in Denver. This can be done by releasing liquid CO2 in the air by using an electric solenoid valve. When the CO2 becomes a vapor and condenses moisture in the air, large clouds of gas are created. This method of fog creation is frequently used in magic acts since the CO2 vapor quickly dissolves once the solenoid valve is closed.

The entertainment industry not only consumes ample amounts of CO2, but makes high levels of carbon emissions as well. This is due to transportation, onsite generators and pyrotechnical effects that require the CO2 gas. Therefore the Producers Guild of America has created the Green Production Guide to cut carbon emissions on various film and TV production sets.

Find out more about CO2 and its effects by contacting your local specialty gas provider Rocky Mountain Air Solutions in Denver.