Anne, What kind of application are you interested in using the humidifiers for, ie. exhibit cases, large spaces, small spaces, conservation? As a conservator I have used ultrasonic humidifers for conservation treatments, humidification, flatting etc. I have used a few different brands & they all worked well. The cautions I would give are only use deionized or distilled water. Water out of the tap with it's minerals will destroy the ultrasonic element in short order. Also never run one without water in it, I would only leave one on over night after I gauged how long it takes for it to use up its supply. With deionized/distilled water you should have no mold problem as long as you keep it clean plus there is no mineral "dust" from this water. If you are interested in exhibit case humidifiers I suggest you look up the National Park Service Conservation Center at Harpers Ferry on the internet, they have done a lot of research & construction on such units. Please feel free to contact me offline if you have further questions. Sincerely, Peter Lundskow Chief Conservator Indiana State Museum -----Original Message----- From: Museum discussion list [mailto:[log in to unmask]] On Behalf Of Anne Lane Sent: Wednesday, September 21, 2005 3:57 PM To: [log in to unmask] Subject: [MUSEUM-L] Humidifiers Hello - Any of you have any experience, pro or con, with small portable humidifiers? Types, brands? Capacity, expense, mold, dust, ease of refilling, stuff like that? Many thanks, Anne Anne T. Lane, Collections Manager Charlotte Museum of History 3500 Shamrock Drive Charlotte NC 28215 704-568-1774, ext 110 [log in to unmask] Fall Featured Events and Exhibits:Hands-on-History: Harvest Fun! Saturday - September 10, 2:00-4:00 p.m. Revelry & Revolution: An 18th Century Dinner-Theater Experience - Saturday, September 24, 6:00-10:00 p.m.Faces & Stories Exhibit Opening - Saturday, October 22, 7:00-9:00 p.m. Haunted Homesite - Saturday, October 29, 6:00-9:00 p.m. Civil War Lantern Tour - Saturday, November 5, 6:00-10:00 p.m.Kites to Kitty Hawk, on exhibit until September 2005Faces & Stories: A Portrait of Southern Writers on exhibit October 2005-January 2006Solving the Rock House Mysteries, now on exhibit For information on these and all other events, please call (704) 568-1774 or visit us online at <file:///C:\Documents%20and%20Settings\cmh.alane\Application%20Data\Microsof t\Signatures\www.charlottemuseum.org> www.charlottemuseum.org ========================================================= 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).