JD
Well-Known Member
In the 70's and 80's I used both dry ice and chemo-fog and fogged the heck out of some of the places we did and never had any problems with smoke detectors tripping. It's been awhile. Anyhow, I have an upcoming charity gig at a fire house, and when I mentioned we would be using fog, the fire chief told me that they answer a lot of alarms tripped off by detectors reacting to the use of fog machines. I found that surprising. It has been awhile so I though I would throw the subject up here. Has the nature of detectors changed in a way that may cause them to trip on fog? (or is this fire chief a little foggy himself?)