Portable Water Purifier - Clean water on the go! Simply use the bottle to scoop water from any tap, pond, stream or river, and you will have a supply of fresh, clean drinking water. Use the carabiner to attach to your backpack when you go travelling or hand it over to your school going children to ensure access to safe, clean drinking water in an emergency. Brief Product Description - 200ml. Filters up to 1000 liters of water. Removes 99.99 percent of waterborne bacteria.