Not to be too much of a cranky old geezer, but I'm a bit puzzled at why there's such a demand for this fog/haze stuff. Over 20 years ago they banned smoking in many public places and everyone screams about air pollution outside -where it is much less concentrated. While it may make your lighting look cool, how wise is it to be breathing this crap? Maybe the water based stuff mentioned isn't so bad, but any kind of smoke or oil is just air pollution! So much for being good stewards of our "temple of the Holy Spirit"!?!
Also doesn't that stuff end up degrading things like optics on projectors, and make ventilation screens/filters etc. on amps and other equipment plug up faster? It's been awhile since I've subjected myself to a smoggy show, but forget the equipment, I just don't care to breathe the stuff even on an occasional basis let alone every week at church. Am I the only one who sees a problem with this stuff?