Superior 5-Stage RO Filtration: UIJA portable water purifier features 5-stage purification technology with a 0.0001 m RO membrane, effectively removing . FDA, CE, RoHS, WQA, and NSF certified, ensuring clean drinking water whether you're on a road trip or at home Built-in Power Supply: This portable water filtration system is built-in high-capacity battery, requiring no installation or external power source. Simply press a button to enjoy pure, healthy water anytime, anywhere. It also includes dual expansion ports (USB and Type-C), so you can charge your phone, tablet, or power small household devices like lamps or fans, adding extra convenience for everyday use or during emergencies like power outages Fast & Long-Lasting: Fully charged, the UIJA purifier delivers up to 18.5 gallons of clean water enough to support a small household for days without needing a refill. It fills a 1.7L jug in just 5 minutes and operates quietly at only 35dB, making it ideal for kitchens, offices, or camping,without causing disruption.By reducing plastic bottle waste and cutting down on daily water expenses, it's an eco-friendly and cost-effective solution for safe, great-tasting drinking water at home Convenient Maintenance: The RO composite filter lasts up to 1 year, making it ideal for daily household use. A built-in filter replacement reminder appears on the screen so you ll never miss a change. After each use, the system automatically self-cleans the tank to ensure water stays fresh and safe.The twist-and-lock design, replacing the filter takes just seconds no tools or special skills needed Portable & Travel-Ready: Featuring a sleek hidden handle, this portable water purifier is built for life on the go. Its compact and lightweight body makes it easy to pack, carry, and store whether you're heading out in your RV, going camping, or taking a road trip. The durable, drop-resistant construction ensures long-lasting use, even in rugged conditions. Plus, the included storage bag keeps all components organized, making it perfect for travel, home, office, or emergency preparedness. Wherever you are, enjoy clean, safe water anytime Please Note: A full-length water pipe is included. For first-time use, cut it into two sections one for the raw water inlet and the other for the concentrated water outlet adjusting each to the desired length. Both the inlet and outlet feature circular gaskets for a secure connection. When removing the plug or water pipe, be sure to press the circular gasket.