Large Capacity 750ml Ultrafiltration Membrane Filter Cup Outdoor Portable Hiking Camping Equipment Water Purification Water Drinking BottleFeature:1. This water purification straw is a high-efficiency portable water purifier. It has super purification performance and purifies wastewater into drinking water2. It can effectively remove all E. coli and parasites that cause common respiratory diseases. No power/battery and spare parts required, you can take it anywhere for safe and water cleaning.3. The use of the new "ultrafiltration membrane technology" not only greatly improves the efficiency of water purification, but also does not use any chemical medium to purify the water, so it will not cause any problems or side effects.4. Water purification straws can not only provide safe and clean drinking water for victims of earthquakes, tsunamis, hurricanes, or other disasters, but also become a standing "self-defense weapon" for those traveling outdoors.5. It can be used to directly filter any dirty water on the surface (referring to the pollution-free water source and fresh water source), and the quality of wastewater is higher than the standard log7-log8 tap water of many developed countries abroad. It can filter 97% of parasites, microorganisms and Escherichia coli in the water, effectively preventing the occurrence of infectious diseases such as dysentery.6. Provide safe, clean drinking water outside.7. Excellent performance