The device is designed to be almost silent while it is running filtering through air to remove out the excessive moisture. It uses water crystals that are renewable colorless odorless non-toxic and completely safe. There is an indicator window with special water glass crystals that change from blue when dry to pink when wet . Exquisite and compact enough to fit easily on your shelf desk or anyplace you want to enjoy a dry and cool environment. You cannot miss this affordable alternative to the costly and loud traditional dehumidifiers. Features . Eliminates excess moisture in small spaces. Uses a renewable water glass crystals technology. Small lightweight and durable design. Low power consumption Specifications . Power - 25W. Voltage - 100-240V 50 60Hz. De-humidification amount - APP.7-9OZ.. Product size - 5.10 x 1.3 x 5.10 in.