Jenna, This is much more complicated than you may realize. It depends upon the age of your building, its construction, the layout of the rooms, whether you can tie the dehumidifier in to a water supply, if you are open in the winter, the thermostat setting in the winter, and so forth. It may even be unadvisable to humidify for your building. This would be much more easily handled with a phone call to get through some of these questions quickly. Feel free to give me a call. Marc American Conservation Consortium, Ltd. 4 Rockville Road Broad Brook, CT 06016 www.conservator.com 860-386-6058 Marc A. Williams, President MS in Art Conservation, Winterthur Museum Program Former Chief Wooden Objects Conservator, Smithsonian Institution Fellow, American Institute for Conservation (AIC) From: Jenna Cooper Sent: Thursday, August 14, 2014 3:48 PM To: [log in to unmask] Subject: [MUSEUM-L] Humidifiers I'm trying to determine what kind of humidifier to buy for our Museum, which is a stone structure and 1,435 sq. ft. partitioned into six rooms. The RH is consistently low (<40% on average), and it often drops below 20% during winter months. Can anyone recommend a type of humidifier and/or brand that is portable and affordable for a small museum to purchase? ========================================================= 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).