The Sawyer Squeeze Water Filtration System is our filter of choice for many who need reliability. With it being rated to 0.1 micron absolute filtration, it allows for clean water anywhere in the world. The Sawyer Squeeze Water Filtration System removes 99.99999% of bacteria (including E.coli, cholera, leptospirosis and salmonella), 99.9999% of parasites (including giardia and cryptosporidium), and 100% of microplastics. To use the System, fill up the PBA-free pouch (which is reusable) at any source of water and screw the filter onto the pouch. Then squeeze the water into a bottle or drink right from the filter. Each Squeeze Filter is individually tested to performance standards three times before packaging. This System from Sawyer is great for outdoors including hiking and camping along with any type of travel. Buy yours today at Sawyer's Country Edge.