3.Effective absorption: Moisture Absorption The dehumidification bag uses spherical calcium chloride to expand the rapid absorption area and protect clothes and items from excessive moisture damage. 1.effectively absorbs excess moisture and eliminates musty odors for up to 60 days (duration due to temperature and humidity). 2.Design: and compact, it allows for maximum efficiency in small spaces. Hanging design, can be easily hung in a closet or other enclosed space. 4.Wide range of uses:Our dehumidifier bags are perfect for use in small enclosed spaces like closets, storage bins, suitcases and drawers to fresh and dry conditions for weeks.