Low-lying fog effects are frequently created using solid carbon dioxide, commonly known as dry ice, in conjunction with a fog-generating device. The machine heats water to create vapor, into which the dry ice is introduced. The rapid cooling of the vapor, combined with the release of carbon dioxide gas, causes condensation and the formation of a dense, white fog that hugs the ground due to its lower temperature and higher density compared to the surrounding air. For example, theatrical productions and haunted houses often utilize this technique to create an eerie atmosphere.
This method of fog generation offers several advantages. The resulting fog is non-toxic, leaves no residue, and dissipates quickly, eliminating concerns about cleanup or lingering effects. Historically, this technique has been favored in the entertainment industry due to its dramatic visual impact and relative ease of use. The distinct characteristics of the fog produced, specifically its low-hanging nature and rapid dissipation, make it ideal for creating specific atmospheric effects that other fog-generation methods cannot readily replicate.