Abstract: A dehumidifier device is provided for absorbing water vapor from ambient air. The device is comprised of a container constructed of fabric woven from multifilament yarns of fiberglass, and confining granular desiccant material such as silica gel having a visibly distinctive moisture indicator. The fabric is of a critically selected construction that permits visual observation of the confined granules through the fabric while effectively retaining the granules. The device is capable of repeated cycles of absorption of moisture and thermally induced desorption.