We are finding that at the Historical Society too, as well as the conservator-irking issue that our calcium-rich local water used for the smoke screen leaves a film on the exhibit cases. 

"Jackson, Gregory" <[log in to unmask]> wrote:        

    v\:* {behavior:url(#default#VML);}  o\:* {behavior:url(#default#VML);}  w\:* {behavior:url(#default#VML);}  .shape {behavior:url(#default#VML);}                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

    
    
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