Best Backpacking Water Filters of 2025

Everyone exploring the backcountry needs water, but staying hydrated is not as simple as drinking straight from streams and lakes. To protect against protozoa, bacteria, and even viruses, there are myriad water filtration and purification systems built specifically for backpacking (many options on this list are great for day hiking, trail running, and travel, too). We've been testing water filters on backcountry adventures near and far since 2018, and our 19 current favorites below include everything from ultralight squeeze filters and chemical drops to pumps and large-quantity gravity filters. For more background information, see our comparison table and buying advice below the picks, along with details about our testing process.

Continue reading to learn more about the best water filters, written by Maddie Downie.

Switchback Travel: Best Backpacking Water Filters of 2025

Woman sitting on a rock by a lake using a portable water filter to purify water.
Woman sitting on a rock by a lake using a portable water filter to purify water.

Best Backpacking Water Filters of 2025

Everyone exploring the backcountry needs water, but staying hydrated is not as simple as drinking straight from streams and lakes. To protect against protozoa, bacteria, and even viruses, there are myriad water filtration and purification systems built specifically for backpacking (many options on this list are great for day hiking, trail running, and travel, too). We've been testing water filters on backcountry adventures near and far since 2018, and our 19 current favorites below include everything from ultralight squeeze filters and chemical drops to pumps and large-quantity gravity filters. For more background information, see our comparison table and buying advice below the picks, along with details about our testing process.

Continue reading to learn more about the best water filters, written by Maddie Downie.

Mwandishi wa Blogu ya Picha
Senior Editor (Former)
Jenny Abegg and Maddie Downie
Topics of Expertise: Climbing, mountaineering, trail running, hiking and backpacking, backcountry skiing
Majina ya Vyombo vya Habari

Switchback Travel: Best Backpacking Water Filters of 2025

Woman sitting on a rock by a lake using a portable water filter to purify water.
Woman sitting on a rock by a lake using a portable water filter to purify water.

Best Backpacking Water Filters of 2025

Everyone exploring the backcountry needs water, but staying hydrated is not as simple as drinking straight from streams and lakes. To protect against protozoa, bacteria, and even viruses, there are myriad water filtration and purification systems built specifically for backpacking (many options on this list are great for day hiking, trail running, and travel, too). We've been testing water filters on backcountry adventures near and far since 2018, and our 19 current favorites below include everything from ultralight squeeze filters and chemical drops to pumps and large-quantity gravity filters. For more background information, see our comparison table and buying advice below the picks, along with details about our testing process.

Continue reading to learn more about the best water filters, written by Maddie Downie.

Mwandishi wa Blogu ya Picha
Senior Editor (Former)
Jenny Abegg and Maddie Downie
Topics of Expertise: Climbing, mountaineering, trail running, hiking and backpacking, backcountry skiing
Majina ya Vyombo vya Habari
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