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.

照片缩略图 博客作者
Senior Editor (Former)
Jenny Abegg and Maddie Downie

Jenny Abegg
Expertise & Background
Topics of Expertise: Climbing, mountaineering, trail running, hiking and backpacking, backcountry skiing
Education: Masters in Education
Years of Writing: 9
Years of Gear Testing: 9
Certifications: PCGI certified Lead Guide
Club or Association Memberships: American Alpine Club, Access Fund, Austrian Alpine Club
Previous Publications: Climbing Magazine, Alpinist, Sidetracked, Adventure Journal, REI Co-op Journal

媒体报道

Sawyer’s picaridin lotion lasts a long time, stores well in survival kits and cars, and doesn’t have the laundry-list poison control label like DEET sprays.

Sean Gold
Founder & Lead Writer

媒体报道

Secure a small loop of cord to a trekking pole to create a convenient place to hang a water bladder and filter water.

Nathan Pipenberg
作家

媒体报道

It contains 20 percent picaridin, a powerful insect repellent that will make nights around the campfire much more enjoyable.

Liz Provencher
Freelane Writer