SurviMate Purified Water Bottle for Camping, Hiking, Backpacking and Travel, BPA Free with 5-Stage Intergrated Filter Straw

【5-Stage Filtration】：The Survimate water filter bottle adopts a composite filter technology, can reduce most contaminants. The filter element uses a coarse filter screen, a 0.01μm hollow fiber UF membrane, a sediment PP membrane, purification beads, and an activated carbon fiber to reduce chlorine, bad odor and intercept heavy metals, sediment, soil, organic matter and other impurities, etc. 【Smaller Filter Pore Size】：The filter pore size of the hollow fiber UF membrane is 0.01 microns so that it can filter out 99.99% harmful materials from the water while other brands' filter pore size is only 0.2 microns. The smaller filter pore size, the higher filtering accuracy. 【Ultimate Wilderness Survival Assistant】：This versatile water bottle not only helps providing healthy, drinkable water in harsh outdoor conditions, but will help you to find direction using the built-in compass on the top. 【Instant Fresh Water】：Just fill up the bottle and drink. Nothing could be simpler - no pumps or hoses, no squeezing, no batteries or bulbs! Only sip 5 to 8 times to get clean water. 【Long Lifespan & Replaceable 】：No need to worry about replacing filters for up to 1500L/year of continuous usage. Replaceable filters save you money as the water bottles themselves have a very long life. (According to different water quality, the lifespan of the filter would be a little different.)