I've seen novelty smoke generators in gift shops that use water and an ultrasonic device to make a fine mist that looks like fog or smoke. I'd be worried about the water vapor being introduced to the exhibit area, though. Curtis Morris Exhibits Shiloh Museum of Ozark History Springdale, Arkansas WPS -----Original Message----- From: Jackson, Gregory <[log in to unmask]> To: [log in to unmask] Sent: Wed, 16 Apr 2008 3:56 pm Subject: Re: [MUSEUM-L] smoke screens in museums Alexandra, It has been my experience that the fog/smoke machines that use “smoke fluid” tend to deposit an oily residue on surface. It has been a while since I used one though, so technology might have improved. Dry ice or some other technology may do the trick. Greg Jackson Pottsgrove Manor Historic Site From: Museum discussion list [mailto:[log in to unmask]] On Behalf Of Alexandra Trumbull Sent: Wednesday, April 16, 2008 4:34 PM To: [log in to unmask] Subject: [MUSEUM-L] smoke screens in museums And another question... I am looking for thoughts by conservation and collections staff on the use of fog machines or smoke screens in exhibits. The Indiana Historical Society has launched a new exhibit that uses a sensor-activated smoke screen, projecting an image on a wall. The director of conservation and I are monitoring the changes in RH in the galleries and are interested in how other museums and galleries have found compromises between exhibits and conservation regarding this technology. Any insight would be much appreciated. Thank you again, Alexandra Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes). ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes). ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).