For most people, water treatment is a must-have on backpacking trips. Heck, even a long day of hiking can require a filter, if you don't want to carry liters of water. It can also sometimes be a good idea to treat water while traveling, or even in the course of daily life at home.

Before the comments section implodes, we’d like to include the caveat that this article covers the filters we were sent to test. We reached out to several brands that did not respond to our inquiries, including MSR, LifeStraw, Steripen and Katadyn.

We are aware these filters are out there and have used them, but they are not included here because we didn’t test them. We’d like to note that the Katadyn BeFree is a popular alternative to the ubiquitous Sawyer Squeeze, with a fast flow rate, low weight, and super flexible bag.

Hikers can also use purifying treatments like Aquamira drops, iodine, or even bleach (repackaged into an eye dropper).

Here are the water filters tested for this article, with info on how they work and who they might be best for, written by Maggie Slepian.

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Medya Mansyone soti nan Garage Grandi Kovèti pou
Garage Grown Gear

Ekspè yo sou demaraj Kovèti pou deyò

Nou se ekspè yo sou deyò Kovèti pou demaraj. Nou ap pasyone sou bay ti mesye yo yon vwa nan yon mond domine pa mak bwat gwo ak détailers. Nou ede mak bonè deyò rakonte istwa yo nan magazin sou entènèt nou an epi nou vann yon seleksyon kovèti pou magazen sou entènèt nou an.

Medya Mansyone

Sawyer’s spray offers an impressive 12 hours of protection against mosquitoes and ticks, and a little less (eight hours) against flies, gnats, and chiggers.

Korin Miller
Health, Lifestyle and Commerce Writer

Medya Mansyone

Sawyer’s Permethrin spray has also worked as promised.

Mark Melotik
Freelance Writer

Medya Mansyone

Sawyer, for example, checks to ensure that no pore size exceeds 0.01 microns, stating that “the filters are then checked four more times at crucial points of assembly for filter integrity before they make their way onto the shelf.”

Dan Hu
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