Buzz
Fog enhances the narrative. Jonathan Knowles / Getty ImagesFog in theatrical performances and nightclubs is typically created using one of three methods:
- Utilize a fog machine that heats and vaporizes specialized fog fluid
- Incorporate dry ice for a low-lying fog effect
- Gather a crowd of cigarette smokers to generate smoke
Fog machines and fog juice are widely used. The process involves heating fog juice to produce smoke, similar to overheating oil on a stove, though fog machines use glycerin or glycol mixed with water to avoid the gumminess and odor associated with cooking oil.
A Seattle Times article states, "The fog is made from propylene glycol, triethylene glycol, and 20 percent water." However, it remains unclear whether this fog affects lungs, particularly for asthmatics, though no definitive evidence exists for the general population.
For a safer alternative, dry ice can be used. Available at ice plants and affordable, dry ice creates a dense, low-lying fog when placed in hot water. This fog consists of carbon dioxide and water vapor, making it entirely safe.
Explore these links for more information:
- How does dry ice work?
- How Halloween Works
- Fog Machine FAQ
- Smoke and Fog
