Making Haze with Fog
The key to achieving a successful haze effect with a fog machine comes down to a few main factors, notes Jason Reberski in his article, “In Favor of Fog and Fans” (PLSN, Nov. 2022, page 46). First, you will need a fog machine that has good low-end control; meaning that ideally, it must be able to consistently output a small trickle of fog (less critical if your application is outdoors or very large scale). Second, a long-lasting, slow evaporating fog fluid made of higher molecular weight, low vapor-pressure glycols is required. Third, a good fan is a must. Almost any fan will work if it is quiet and moves enough air to properly aerate the long-lasting fog into a haze.