Q: How do fog machines work?
Q: How do fog machines work?
A: Water-based fog machines are the most commonly available types for both consumer and commercial use. The fog fluid, typically made from glycol and water, in the fluid tank is forced through a heat exchanger by a high pressure pump.
The heat exchanger maintains a high temperature at which the fluid vaporizes in a process commonly known as “flashing.” As the fluid is “flashed,” it rapidly expands, and that expansion forces the vapor through the nozzle of the machine.
When the vapor mixes with cooler air outside the fog machine, it instantly forms an opaque aerosol we see as fog.
Source: www.gotfog.com