Safe Accessory: The dehumidifier can protect your sensitive valuables, a good accessory for any small closed place. Humidity Indicator: The humidity indicator turns from blue to pink when it reaches its absorption capacity. Renewable: The dehumidifier can evaporate the moisture it has collected by microwaving it for up to 4 minutes at 600W. Safe to Use: The dehumidifier is filled with moisture absorbing Silicon Dioxide and is microwave-safe designed. Ideal for Home Closets, Safes, Cars, RVs, boats, and other storage containers.