With the ultralight BeFree 1.0L, you can head out on any adventure, no matter the size, without worrying about clean drinking water. Whether it be on a remote trek, out for a day hunt, or at a small basecamp by the lake, just fill the flexible, foldable reservoir with water and be immediately refreshed doing what you love. The BeFree 1.0L is the perfect companion for hikes, travel, or for everyday use. Lightweight and compact, it filters up to 2 liters of water per minute. Output 1000L depending on the quality of the water. The Katadyn BeFree 1.0L removes bacteria, cysts, and sediment with its pore size of 0.1 micron (0.0001mm). To get the most enjoyment out of your filter, simply shake or swish the EZ-Clean Membrane™ filter and hit the road.