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Sagan™ Purifier Filters are crafted for everyday use, travel, all outdoor adventures, survival and emergency preparedness. Sagan filters convert any non-salt water source into pure, safe, drinkable water. Works on ANY freshwater source (Rivers / Lakes / Flooded Fields / Puddles / etc.)

Water filtration systems by Sagan™ are tested to establish the water filter's "End of Life" and certified by independent water laboratories to exceed EPA standards for the removal of:  99.9999% of Bacteria, such as E.coli | 99.99% of Virus | 99.9% Parasites & Protozoan, such as giardia and cryptosporidium | as well as Lead, Chlorine, Fluoride and other unwanted toxins/contaminants from your water.  A new level in water purification!

> No expiry date on the filter. Their design allows them to drain fully and once completely dry - the filter can be stored away indefinitely.
> No Chemicals.........no Iodine / Chlorine / etc.
> No moving parts / nothing to break.....unlike ceramic filters which will break when dropped.  No levers nor handles to fail..
> No Wait....................no minimum contact time (unlike UV pens, etc).  Just fill and drink.
> No doubt.................Sagan filters are the only filters in the World tested to 'end of life'.
The Sagan 'Duraflow' Filter has been independently 'end of life' certified to 2,646 ltrs (700 gallons) of Bacteria & Cryptosporidium & 2,079 ltrs (550 gallons) of Virus.
The Sagan 'Journey' Filter has been independently 'end of life' certified to 946 ltrs (250 Gallons) of Virus, Bacteria & Cryptosporidium.

Independent Lab results are available below for your review. Make sure the water filters and filtered water bottles you are using can stand by what they claim!

Sagan™ - simply the best, most tested and trusted water purifiers you can buy for outdoor adventures, camping, hiking, backpacking, kayaking, survival etc. Never buy water again! 

Hydradyne Technology from Sagan


All water has what is known as “surface tension.” This is caused by the molecules which make up water being more densely packed together at the surface due to the stronger inter-molecular forces at work. The dyne level is a way of measuring the surface tension or ‘force’ of water.

Everyday tap water has a surface tension measured in dynes of about 72 dynes. Our cells absorb water at approximately 45 dynes. This means that before our bodies can actually absorb and use the water we take into our systems, it has to expend energy to break down the surface tension from 72 dynes to about 45 dynes.

Due to the ionic properties of the Sagan Life™ Journey™ and DuraFlo™ Filters, the structure of the water is changed, so the surface tension is reduced from say, 72 dynes to approximately 52 dynes. What that means is for your body to absorb the water, it only has to reduce the surface tension by 7 more dynes in order for it to be absorbed into your cells. This reduction in surface tension is what allows you to absorb more nutrients and hydrate up to 50% faster from water which has passed through the Sagan Life™ Journey™ and DuraFlo™ filters. We call this our HydraDyne Technology.

Test Results (PDF's will open in new Window)
Sagan DuraFlo 550 Chlorine/Copper Removal Study
Sagan DuraFlo Water Filter Test
Sagan Journey Water Filter Test