Everyone just assumes that spring water and filtered water is the water that we should be drinking. This is not true. Do the research. Sodium Fluoride, which is NOT removed from by regular filters, calcifies your pineal gland making you more "drone" like, and all the minerals your body needs are provided by the food you eat, meaning that if they are in water it's not only pointless but bad for the stomach. Distilled water, aka rain water, is the best water for your body. Hence, one of these devices are crucial to your health