While tap water anyway contains impurities, boiling it doesn't remove all of the harmful substances either. Water needs a more advanced, more extensive purification process and that's where purely and it comes in. We at Aakash Pure Aqua believe that a reverse osmosis water filter with activated carbon filters and ultraviolet light is the most cost effective way to purify drinking water. Comparing the Aakash Aqua Tech Water purification process and boiling is enough to see that the latter is insufficient in getting rid of the contaminants in drinking water. Aakash Aqua Tech water purifiers use advanced purification technologies such as RO and UV to get rid of harmful bacteria, viruses, heavy metals such as iron rust and toxic carcinogens. Don't wait, switch to Pureit today and feel the difference!