Woman drinking from Sawyer filter on water bottle on rock above river
Woman drinking from Sawyer filter on water bottle on rock above river

The Sawyer water filtration systems use technology adapted from kidney dialysis filters. The Sawyer Hollow Fiber Membrane Filters are composed of tiny “U” shaped micro tubes that allow water to enter into their core through tiny micro pores on the side walls of the tubes.  The pores on our filters and purifiers are so small that no bacteria such as E. Coli, cholera, or typhoid can pass through.  The 0.1 micron absolute filter and 0.02 micron absolute purifier not only exceed EPA pathogen removal rate standards, these systems will also out perform and outlast most other personal filters on the market.

For a more thorough explanation of our filter technology, check out the Water Filtration section of our Technology Page.

Watch the video here.

Media Mentions

Why use a plastic bag when you can simply screw on this end cap, specifically designed for Sawyer water filters?

Zoe Gates
Editor at Backpacker

Media Mentions

In future, I’ll use gravity when I can, and squeeze when I have to.

Richard, aka "LowRange
Hiker

Media Mentions

For longer hikes, it’s convenient to carry a small backcountry water filter, such as a Sawyer Mini or Micro, which allows you to replenish your water from natural sources like streams or ponds.

Philip Werner
Author and Backpacker