A desiccator is a sealed container used to store moisture-sensitive materials, allowing for the removal of moisture through a desiccant, such as silica gel or calcium chloride. It maintains a low-humidity environment to preserve samples, chemicals, or other substances that could be adversely affected by moisture. Desiccators are commonly used in laboratories, particularly in chemistry and material science. They often feature a glass or plastic body with a lid that creates an airtight seal.