- 5-STAGE FILTRATION: This advanced 5-stage filtration system features a coarse filter screen, double-layered pp cotton fiber, coconut shell activated carbon, and hollow fiber ultrafiltration membranes. It effectively removes contaminants, ensuring clean and safe drinking water. - LIGHTWEIGHT & PORTABLE: Ideal for outdoor enthusiasts, this compact and lightweight water filter is your ultimate survival companion. Perfect for camping, hiking, and other outdoor activities, it provides hassle-free access to fresh water wherever you go. - HIGH QUALITY & VERSATILE: Constructed from durable, high-quality materials, this straw filtration system offers multiple filtering modes. Its compact size allows for easy handling and can be effortlessly connected to soft water pouches or disposable water bottles for easy squeezing. - LONG-LASTING & EASY TO MAINTAIN: The upgraded straw filter features removable ends for simple cleaning, ensuring longevity. It provides up to 5,000 liters (1,320 gallons) of purified water, with an optimal flow rate of 500ml/min while maintaining filtration accuracy. Use Scenarios: 1. Hiking in remote areas where clean water sources are scarce. 2. Camping trips where access to potable water is limited. 3. Emergency preparedness kits for natural disasters or travel adventures. With its quality construction and effective filtration technology, this portable water filter is essential for anyone who values reliable hydration while enjoying the great outdoors.