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Tools of the Trade / Re: Fog/Haze that wont set off a very sensitive smoke alarm
« on: Oct 15, 2009, 11:39 pm »My theatre has written authorization from our fire marshal to cover the three particle detectors in the up stage hallway (no particle detectors in the auditorium) with small orange cones that are designed to clip into our detectors during shows that use smoke or haze.
-If it's not illegal to stop the smoke alarms for the show: If you have cheap smoke alarms not on a grid or you can't get them turned off each night- just cover it with a plastic bag. You may have already thought of this but just thought I'd mention it :p
I don't mean to step on toes, but you won't find a jurisdiction in North America that permits covering smoke detectors with anything.
Don't do this.
To the OP, have you looked at using a water based fluid? While not foolproof, particle detectors seem to be much more tolerant when it comes to a water based haze.