ITEM NAME:100G Small Bottle Water Purification Tablets For Drink Clear Safe Outdoor OZ Water purification tablets. weight:100g Clear 1 liter of water in only 30 minutes! Necessary for every trip in nature and outdoors. How to use: Add 1 tablet to 1 litre of clear water. Mix well. Leave for 30 minutes before use. Where there is residue in the water, allow the water to settle or filter through a fine cloth. The filtered water is then treated. Over 1.1 billion people in the world are still without access to “improved†drinking water sources, 84% of whom live in rural areas. 4 billion cases of diarrhea occur annually, of which over 3.5 billion are attributable to unsafe water, and inadequate sanitation and hygiene, accounting for 5.7% of the global burden of disease, placing diarrhea as the third-highest cause of mor.Water purification tablets. Over 1.1 billion people in the world are still without access to “improved†drinking water sources, 84% of whom live in rural areas. 1.8 million people die every year from diarrhoeal diseases, the vast the majority being children under 5 years old.