S1 Select Water Filter

The Select S1 is a dual stage filter. Inside the silicone bottle is a foam filter that uses adsorption to remove chemicals and pesticides. The Micro Squeeze Filter on top removes the standard pathogens along with any other sediment, particulate, and microplastics.

Full Product Description

Enjoy safe, clean water anywhere in the world with Sawyer Select Water Filters and Purifiers which remove virtually all contaminants found in fresh water while also improving taste and odor. These systems combine a proprietary foam membrane in an durable silicone bottle with our 0.1 micron hollow fiber filter at the top — ensuring access to clean water in the backcountry, while you travel, at the office, or for emergencies.

The Foam Adsorption Technology used in these systems was developed with a partnership with Foamulations LLC to now be able to safely remove contaminants like heavy metals, chemicals, pesticides, and viruses while also improving taste and odor. Adsorption filtration is the process in which molecules adhere to the surface of the adsorbent foam membrane. This highly advanced filtration and purification process, combined with our 0.1 micron absolute filter will ensure that any and all particulate or pathogens above 0.1 microns are filtered out of your water, including bacteria, protozoa, cysts, dirt and sediment.

STATS AND SPECS

Filter Material

0.1 Micron Absolute Sawyer Micro Squeeze Filter

Longevity

Up to 1600 uses

removes

BACTERIA PROTOZOA CHEMICALS PESTICIDES

protection from

sweat resistant

liquid volume

 oz

HEIGHT

8.5

 inches

width

14

 inches

length

3

 inches

filter Weight

0.625

 oz

Reduces Harm

The Select systems reduce chemicals down to 0.5 parts per billion and reduce pesticides down to 0.01 parts per billion.

Improves Taste & Odor

The foam membrane within the Select Series is able to improve the taste and odor of contaminated wilderness water.

Select S3 Filters

Select S3 filters out 99.99% of viruses and reduces heavy metals such as lead, copper, arsenic, and mercury down to 0.5 parts per billion (up to 260 times lower than the EPA’s maximum).

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Tested and Proven

Our water filters contain a high number of tiny ‘U’ shaped hollow fiber micro-tubes that trap contaminants while allowing decontaminated water to freely pass through at a high flow rate — eliminating the need to store water and of water contamination after the filtration process.

A hiker drinks from an S1 filter sitting next to a creek.

Designed for Hikers

Rated up to 100,000 filtered gallons of water, the award-winning MINI is perfect for everything from camping with the kids to traveling abroad where tap and bottle water cannot be trusted to kitting out your emergency go bag

Lightweight & Versatile

With a total field weight of only 2 ounces, the compact MINI rolls up into its included collapsible mylar pouch to take up minimal space in your pack and won’t weigh you down.

Frequently Asked Product Questions

Can I freeze the filter?

While we have no proof that freezing will harm the filter, we do not have enough proof to say it will not harm the filter, therefore we must say that if you suspect the filter has been frozen, to replace it — this is especially true with a hard freeze.

Are the filters and purifiers tested and approved?

Our filters and purifiers have been tested by independent and qualified research laboratories according to EPA standards for water filter and purifiers.

Are there any long term storage instructions for the Select filter or purifier?

You can store the bottle with either the Micro Squeeze filter or included white cap screwed on top of the bottle. The proprietary ingredients in the foam will make sure that your foam does not grow bacteria or develop an odor. Please do not compress these systems for long term storage. Store your bottles fully expanded to ensure that you do not inadvertently shorten their life.If you want to dry out your bottle for packing weight reasons (it can save approximately one ounce), store in a dry room with the lid removed and the moisture will eventually evaporate out. Be aware that after you dry the bottle out, your first bottle will produce much less water than normal since our foam is hydrophilic (meaning it attracts water) and will want to hold onto some no matter how hard you squeeze. Repeat steps for first use when you want to use your filter again.

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Bigger than the trails

Since what we make is life-saving, we believe we have a moral obligation to help as many people as we can. 140 charity partners help us distribute our water filters, offering what each of us needs to stay alive, clean water, to people all over the world. It’s the soul of our company. A cause we dedicate ourselves to each day.

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products with purpose

The protection we make saves people’s lives. Literally. No wonder we’re fanatics about testing and dedicated to creating products no one else can match.

Sawyer Standard
REMOVES
  • BACTERIA
  • PROTOZOA
  • CHEMICALS
  • PESTICIDES
REMOVES
  • BACTERIA
  • PROTOZOA
  • CHEMICALS
  • PESTICIDES
A woman applies sunscreen to her daughter, who is drinking out of a Sawyer water filter.
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