Pureit water filter removes all harmful contaminants making it much safer than boiling.In the developing world, 80% diseases are water-related. The World Health Organization states that the provision of safe water alone will reduce diarrheal diseases by up to 50%. Also, as a result of pollution, the water you drink may contain heavy metals and iron rust which boiling cannot remove. These metals can hamper the mental development in children. Boiling is not the answer as it does not remove harmful contaminants that water purification can.