The standards are much less stringent than for municipal water supplies. For example, bottled water does not have to be disinfected or tested for parasites such as Cryptosporidium. Our body accepts these minerals, but cannot assimilate them. So they accumulate in the body, in our tissues, having been rejected by our cells. Filtered water will have solids and minerals removed.
Filters are effective for a short time only until they are filled up with solids.
They are also a breeding ground for bacteria. The body needs pure water to carry out the many critical functions to sustain life. Distilled water is the purest water. It is only steam distilled water that can collect and pick up the inorganic debris and minerals that have been rejected by the cells and have accumulated in our tissues, creating or adding to our health problems. However, they must be organic.