Perfect for the majority of hiking and camping trips, travel, and everyday use, the S1 Filter is rated up to 1,600 uses. The S1 Filter removes 99.99999% of bacteria and 99.9999% of protozoa and cysts, plus reduces chemicals down to 0.5 parts per billion and pesticides down to 0.01 parts per billion.
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. Available in three models, 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.
WHAT IS THE DIFFERENCE BETWEEN SAWYER S1, S2 and S3?
The three Select systems reduce chemicals down to 0.5 parts per billion (up to 40 times lower than the EPA’s maximum recommended level) and reduce pesticides down to 0.01 parts per billion (400 times lower than the EPA’s maximum).
The Select S2 and Select S3 models go even further, purifying contaminated water from suspect sources:
Select S2 filters out 99.99% of viruses
Select S3 filters out 99.99% of viruses and reduces heavy metals such as copper, arsenic, and mercury down to 0.5 parts per billion (up to 260 times lower than the EPA’s maximum).