Desiccator

A desiccator is an airtight container which maintains an atmosphere of low humidity through the use of a suitable drying agent which occupies the bottom part of the desiccator. It is used both for the cooling heated objects and for storing dry objects that must not be exposed to the moisture normally present in the atmosphere. There are two basic types of desiccants: dynamic and static. Dynamic desiccator allow a flow of wet gas to flow through the desiccant bed to dry the gas. The more complex dynamic desiccator that regenerate automatically, are typically large and expensive, and require an external power source.