We've all seen the effect - graceful waves of low-lying fog wafting across a stage, making talent and props appear to be floating on a cloud. It's a timeless classic that can create subtle mystery or dramatic punch.

About Low Fog

ETG creates low fog using two distinct types of devices - fog chillers and nitrogen foggers. Fog chillers, such as the LeMaitre LSG and Cirrus units, use a cryogenic fluid (Liquid CO2) to dramatically chill traditional stage fog. This chilling effect causes the fog to become heavy and stay low to the ground. Nitrogen foggers, on the other hand, use no fog oil. LN2 foggers simply let the supercold liquid nitrogen create its own vapor cloud as it is introduced to warm humid air inside a water boiler.

With this in mind, fog chillers are very efficient machines. Because fog fluid is the basis of the cloud, cryogenic fluid (CO2) consumption is much less than that of a nitrogen fogger. This translates into a much cheaper operating cost. Additionally, by changing the mix of fog fluid, CO2-chilled fog can last much longer than nitrogen fog. The drawback is that once the stage fog begins to warm, it rises. ETG combats this challenge by custom-mixing our fog fluid to create dispersion times to fit the needs of each client.