In wintertime, never allow the temperature to fall below freezing in your storage space. Try to keep stored items in the center of your storage room. Insure you monitor your facility during peak condensation times which is the transition period between winter and summer. Make sure you dust the stored items from time to time as dust is abrasive and can cause chemical pollutants. An exhibit case present the ideal means for object preservation and display because it is generally limited in size, is usually sealed to some degree, and can be modified to contain a variety of moisture controlling materials.
Case controls can be either passive or active.
A passive display case uses trays of silica gel, pollution control agents, and other corrosion inhibitors to protect artifacts. Active cases usually employ small mechanical systems which may be built into the case such as dehumidifiers or filters. Electronic sensors can be concealed in the case to control temperature and moisture. Lighting is an important consideration. Some fixtures such as fluorescent light ballast's or transformers may generate ozone.