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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hello Laura,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"> The use of 405 nm wavelengths as a virucide is new to me, but it’s outside my knowledge base. However, these bulbs are within the visible light spectrum so I believe your biggest
concern will be the overall light levels. Being that this is a classroom I’m guessing items are in there for short periods of time and are not super significant/delicate.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"> CCI (<a href="https://www.canada.ca/en/conservation-institute/services/agents-deterioration/light.html">https://www.canada.ca/en/conservation-institute/services/agents-deterioration/light.html</a>)
has some information, but you’ll need to determine light levels for your specific usage. Light damage is cumulative so even if the classroom has higher levels than recommended, as long as they are stored in dark or low light levels the long-term damage may
even out. Ultimately, you have to determine how long you want the items to last and what their expected lifespan is.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal">William Shepherd <i>(he/him/his)<o:p></o:p></i></p>
<p class="MsoNormal">Collections Officer<o:p></o:p></p>
<p class="MsoNormal">Swift Current Museum<o:p></o:p></p>
<p class="MsoNormal">44 Robert Street West<o:p></o:p></p>
<p class="MsoNormal">Swift Current, Saskatchewan, S9H 4M9<o:p></o:p></p>
<p class="MsoNormal">Phone: 306-778-4815<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In the spirit of respect and reconciliation, we acknowledge that we are on Treaty 4 territory, the ancestral land of the Cree, Anishinabek, Dakota, Nakota, and Lakota Nations and the homelands of the Métis people.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img border="0" width="127" height="57" style="width:1.3229in;height:.5937in" id="Picture_x0020_1" src="cid:image001.jpg@01D93633.EB280200"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Collection: <a href="https://saskcollections.org/swiftcurrent/">
https://saskcollections.org/swiftcurrent/</a><o:p></o:p></p>
<p class="MsoNormal">Archives: <a href="https://memorysask.ca/swift-current-museum">
https://memorysask.ca/swift-current-museum</a><o:p></o:p></p>
<p class="MsoNormal">Library: <a href="https://www.librarything.com/profile/SwiftCurrentMuseum">
https://www.librarything.com/profile/SwiftCurrentMuseum</a><o:p></o:p></p>
<p class="MsoNormal">Website: <a href="http://www.swiftcurrent.ca/museum">http://www.swiftcurrent.ca/museum</a><o:p></o:p></p>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu>
<b>On Behalf Of </b>Abraczinskas, Laura<br>
<b>Sent:</b> Wednesday, February 1, 2023 10:41 AM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> [Nhcoll-l] Inquiry about installing Germicidal Lighting device (405nm) in museum space<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<span style="font-size:9.0pt;font-family:"Segoe UI",sans-serif;color:#212121">You don't often get email from
<a href="mailto:abraczi1@msu.edu">abraczi1@msu.edu</a>. <a href="https://aka.ms/LearnAboutSenderIdentification">
Learn why this is important</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Does anyone have information about the use of germicidal lighting in museums and effects on collections? I learned today that a device known as “Indigo-Clean” is scheduled to be installed in the Museum’s classroom.
This is a space where specimens (mainly birds, mammals, and vertebrate fossils) are displayed and placed on tables for students to examine during weekly lab sessions. The lights are described as LED Luminaires.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">A university engineer provided the following information and links.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">“ Indigo-Clean operates at 405nm which is just outside of UV range. UV is 100 to 400nm. Please use the link for detailed information on this technology.
</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#385623"><a href="https://www.nature.com/articles/s41598-021-97797-0">https://www.nature.com/articles/s41598-021-97797-0</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://kenall.com/Kenall-Files/Product-Files/Sell-Sheets/Indigo-Clean-Technology-Millenium-SimpleSeal_sellsheet.pdf">https://kenall.com/Kenall-Files/Product-Files/Sell-Sheets/Indigo-Clean-Technology-Millenium-SimpleSeal_sellsheet.pdf</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’d appreciate any advice or information!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks and best,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Laura<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">Laura Abraczinskas<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">Pronouns: She, Her, Hers<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">Collections Manager, Vertebrate Collections<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">Michigan State University Museum<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">409 West Circle Drive<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">East Lansing, Michigan 48824<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">USA<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif">(517) 355-1290 (Office)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><i><span lang="EN-US" style="font-size:12.0pt;font-family:"Georgia",serif;color:#201F1E;border:none windowtext 1.0pt;padding:0cm;background:white">Michigan State University occupies the ancestral, traditional, and contemporary Lands of
the Anishinaabeg–Three Fires Confederacy of Ojibwe, Odawa, and Potawatomi peoples. The University resides on Land ceded in the 1819 Treaty of Saginaw.</span></i><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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