LifeStraw Personal - A water filtering straw with 0.2 micron filter size. A compact no-nonsense product, the LifeStraw Personal has been tested and proven in disaster areas such as the Haiti earthquake and Pakistan floods. - Chemical free - BPA free - No pumping needed - Highly compact - Filter life: approx. 4000 liters - Filters 99.9% of protozoa (Giardia lamblia and Cryptosporidium parvum) - Filters 99.9999% bacteria (escherichia coli, campylobakteeri, vibrio cholera, pseudomonas aeruginosa, shigella, salmonella) Don't allow your filter to freeze. Water expands as it freezes and may break the filter element. For each LifeStraw sold, money is forwarded to teh FollowtheLiters.com project. The sum given for each straw is enough to secure clean drinking water for one child in Africa for the entire school year. *Note!* A water filter or purifier tablets cannot remove the toxins created by algae bloom, and therefore do not make water containing said toxins safe to dri