With this Camping Water Purifier Pocket Straw, all water sources can also be your drinking water source! It is perfect for camping, and other outdoor activities! What would you do if you run out of water in the middle of the forest? Your next best option would be to drink from streams but you have to make sure that they are clean and potable. This camping water purifier then acts like a straw wherein you sip the water through it. It then filters out bacteria and other microbes from the water so it can be safe for you to drink. It can filter up to 5000 liters of water in total so it is reusable.