I learned something new today. Peter WV: Why Home Distilling Won't Remove All Chemicals From Drinking Water "Because distillation requires boiling for a while, it kills bacteria, viruses, and parasites. If done properly, distillation like this can remove about 99 percent or so of pollutants, but it cant be counted on to remove chemicals that have a boiling point around or below water. These products will turn to steam the same as the water and end up in the second purified container. Examples include toluene, benzene, some pesticides, and others."