3 Pack - LifeStraw is the award-winning personal water filter, designed to provide you with safe, clean drinking water in any situation. The ideal water filter for hiking and camping, travel, emergency preparedness and survival, LifeStraw makes contaminated or suspect water safe to drink. This ingenious product is the most advanced personal water filter available today. Surpasses EPA guidelines for E. Coli, giardia, and cryptosporidium oocysts, rigorous standards for water filtration. Features & details This official LifeStraw personal water filter will provide 792 gallons (3,000 liters) of safe drinking water without using chemicals, iodine Removes 99.9999% of bacteria including Escherichia coli (e-coli), campylobacter, vibrio cholera, pseudomonas aeruginosa, shigella, salmonella Removes 99.9% of protozoa including giardia lamblia (beaver fever), cryptosporidium parvum, entamoeba histolytica No shelf life, can be stored indefinitely even after use Perfect for your family and friends to use during camping, hiking and backpacking or for your emergency kits at your home, car and office