Haze machines, or haze generators (commonly referred to as hazers), are effects machines similar to fog machines, designed to produce an unobtrusive, homogeneous clouds suspended in the air intended primarily to make light beams visible or create a subtle diffusion.
Smoke, fog or haze machines have long been used to maximize the effect of lighting effects, as most modern lighting effects rely on beams of light moving around. This effect is hugely enriched when the light hits the smoke or haze particles, making the beams more pronounced and visible.
If you want one way to really spice up your stage lighting, haze is the way to go! Besides having a good console, haze is the best way to take your show to the next level without spending an arm and a leg.
However, there is a ton of confusion about haze, how it works, if it sets off fire alarms, and if it’s safe to breathe.
Is Fog or Haze Fluid safe to use?
Oil or water-based, is does not matter. Both are safe to use and enjoy. And if you have problems with folks complaining, print out a copy of this report for them to read and see what conclusion they come up with: Actors Equity.org safety report