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The Design and Operation of a Passive Humidity-Controlled Cold Storage Vault Using Conventional Freezer Technology and Moisture-Sealed Cabinets

This paper presents results from a research project sponsored by the Smithsonian Institution to construct and operate a low-cost subzero temperature storage vault for photographic and manuscript collections. It uses conventional walk-in freezer technology and passive moisture control methods to achieve large savings in both construction and ongoing operational costs.