Bullet Points:1, Lightweight and Portable: The portable straw water filter can be removed anytime and anywhere, so you can enjoy fresh emergency drinking water. The filter is compact enough to fit in smaller areas.2, Fresh and clean: This water filter reduces the risk of infc tion by removing E. coli, Legionella and Salmonella and is designed to provide fresh and clean drinking water.3, Remove harmful substances: Each water filter survival filter is designed with a hollow fiber membrane and the 0.01 micron filtration effectively removes 99.99% of the harmful item.4, Rescue Equipment: Our water and filtration systems operate without electricity, quickly turning rain, lake, and river water into clean drinking water. Water purifiers can meet your various outdoor water needs.5, Versatile Application: Drink-through water filter emergency equipment and equipment can be used for travel, sports, hiking water filters, camping water filters, outdoor work, during natural disasters, emergencies and more. Description: Our water and filtration systems operate without electricity, quickly turning rain, lake and river water into clean drinking water. Features:1. Lightweight and Portable: The portable straw water filter can be removed anytime and anywhere, so you can enjoy fresh emergency drinking water.2. Improve Taste: This water filter is designed to provide fresh drinking water and improve the taste of drinking water.3. Healthy p