• Clean drinking water: our outdoor water bottle with filter removes 99.99% of bacteria, protozoa, and other pathogens. • Versatile use: the survival water filter is ideal for emergency situations, hiking, or travel. Water can be drawn from any river, stream, lake, pond, or source. • Durable and high quality: with a filter capacity of 1500 L and filtering precision of up to 0.05 µm, the outdoor water filter is ready to use in seconds. • Innovation: the world's first self-pressing water filter with hollow fiber membrane. Thanks to the unique all-in-one solution, the survival drinking water bottle requires no additional components.