The water collected from a dehumidifier is generally not safe to drink. Although it initially condenses from air and is somewhat pure, it quickly becomes contaminated by bacteria, mold, dust, and other impurities from the dehumidifier's collection tank and components. The tank creates a hospitable environment for microbial growth, and the water may also contain trace metals leached from the machine parts. Drinking this water can cause health issues like stomach upset, diarrhea, or allergic reactions. Even boiling or filtering the water does not guarantee its safety for drinking. It is best to avoid consuming dehumidifier water and use it instead for non-potable purposes like watering plants or cleaning.