LifeStraw is a water purification device that comes in many forms and is produced by a Swedish company called Vestergaard Frandsen. Using a series of filtration technologies, it is designed to filter water from its source and makes the water safe for the user to drink on the spot. The user inserts one end of the straw in a water source while sucking through the other end of the straw on as the water goes through the filtration systems and is ready to drink. LifeStraw units filter out 99.99% of waterborne diseases and come in two primary forms: the single straw, which costs $20 a unit, is good for single person use and lasts a whole year and the community filter which can last 3–5 years in a community of 100 people and costs $395 per unit.