Award-winning LifeStraw Personal Water Filter is an essential tool for hiking, camping, travel, and emergencies. Filters up to 1,000 gallons (4,000 liters) of contaminated water without iodine, chlorine, or other chemicals with no need for batteries and with no moving parts. Removes minimum 99.9999% of waterborne bacteria, 99.9% of waterborne protozoan parasites, and filters to 0.2 microns; surpasses EPA filter standards. BPA-free materials. The LifeStraw never expires so it’s perfect for emergency kits.