Dear Susan,
The Getty has done extensive research in using anoxic environments to 
control insect pests.  They offer a free PDF download of a publication 
entitled "Inert Gasses in the Control of Museum Insect Pests" that you may 
find useful on the following page:
http://www.getty.edu/conservation/publications/pdf_publications/books.html
Hope this helps.
Sincerely,
David Ryan
Registrar
Colorado Springs Pioneers Museum
www.cspm.org 

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