If you need a dehumidifier for a small, enclosed space, owners say that the Eva-Dry EDV-E-500 Renewable Wireless Mini Dehumidifier works surprisingly well. This unit operates without batteries or electricity; it uses… crystals to absorb about 8 to 10 ounces of water over several weeks. Consumers report using it with great success in bathrooms, closets, cabinets, clothing chests, small refrigerators, freezers, gun safes and -- in one instance -- a violin case. When the crystals become saturated, they turn pink, indicting that it is time for the unit to be plugged into an electrical outlet so the crystals can be dried out.
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