Never go thirsty again with this Sawyer Mini Water Filter. The 0.1 Micron Absolute Filter makes it impossible for harmful bacteria (like salmonella or leptospirosis), protozoa, or cysts like E. coli, Giardia, Vibrio cholerae and Salmonella typhi to pass through the filter. All Sawyer water filters meet or exceed Environmental Protection Agency (EPA) recommended removal rates. With a weight of just 2 oz., this filter can attach to most disposable water bottles, to hydration packs, or you can use the straw to drink directly from your water source. Each Mini Filters up to 100,000 gallons and comes with a cleaning kit and instructions on how to clean the filter system.