Perfect for weekend hikes, global adventures or everyday use, the AMK RapidPure Intrepid Bottle gives you the power to filter and purify water against all bacteria, parasites, and viruses in a durable bottle that's safe, fast, and easy to use. This 25 oz. purifying water bottle with filter features a flip top lid and ergonomic design. Unlike microfilters that rely on pore size to simply filter out bacteria and sediment, RapidPure water treatment actually purifies water using electroadsorption, removing bacteria, parasites, viruses, parasites, chemicals, heavy metals, pesticides, and microplastics, as well as filtering out sediment. With no pumping, squeezing, priming, or batteries, this ultra-fast water filter is the best water purifier for camping, hiking, travel, and everyday use. RapidPure continues to work even after it has been frozen, giving you peace of mind if the temperature suddenly drops. With RapidPure water purifiers, quenching your thirst is safer, faster, easier, and better tasting.