Large Capacity 750ml Straw Filter Cup Outdoor Portable Hiking Camping Equipment Survival Emergency Water Filter Water Drinking BottleFeature:1. This water purification cup is a high-performance portable external water filter. Purifies wastewater into drinking water with super purification efficiency!2. It effectively removes all and parasites that cause common cardiovascular diseases.3. You don't need electricity/battery and spare parts, you can take it with you for safety and cleaning with water.4. The use of the new "hollow fiber membrane" 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.5. It can be used to directly suck and drink any dirty water and surface water of category 1-2, and the quality of wastewater is higher than tap water in many developed countries.6. It can filter 99.9% of parasites, Escherichia coli and in water, effectively preventing the occurrence of infectious diseases such as dysentery.7. Water purification cups can not only provide safe and clean drinking water for victims of earthquakes, tsunamis, hurricanes, or other disasters, but also become a permanent water container for people traveling outdoors.8. Excellent water purification performance: 1500L water can be filtered under normal conditions.9. Reduce turbidity.10. It does not contain chemicals.11.