Lonman wrote:
Yep, we used to use fog and actually had someone who was unusually highly allergic to the smoke that it produced and went into seizures and passed out. Even though I think that might have been an isolated incident, that was the last time we used it.
Propylene glycol allergies are very real, although pretty rare. People with that allergy usually avoid places where a fog machine might be used, but a local bar doing karaoke usually isn't expected to have fog. You don't want to surprise people that way, as you found out.
There is fog juice made from vegetable glycerine, but I don't know how hard it is to find, or if it works in all fog machines.
I choose to do without the fog.