Features & Specifications • Weighing only 2oz, easy to use and light filter straw, take up very little space in your backpack • Just sip on the straw and the water will be filtered out when it enters the mouth • Direct drinking water from the source near a stream or lake, or fill your water bottle, insert the filter and start sipping • The 0.01 micron (minimum) filter can physically remove 99.99% of bacteria, such as Salmonella, Cholera, and E. coli; remove 99.9% of protozoa, such as Giardia and Cryptosporidium • Effective filtration up to 1500L (396 Gallons) • Blowing off the water filter regularly after drinking helps to keep the water filter clean and prevent clogging • Includes a detachable lanyard and extension tube • BPA free and meets US Environmental Protection Agency drinking water standards Specifications: • Filter material: ultrafiltration membrane + PP cotton + carbon particles + antibacterial ball • Product material: ABS+PE • Filter life: 1500L • Flow rate: 550 ML/min • Product size: 16.8*8*5cm Package included • 1 x Outdoor Water Purifier • 1 x Lanyard • 1 x English and Chinese User Manual