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How Sagan Filters Work

Why They Work

Hate to get technical, but…

… you’re probably wondering how Sagan water filtration systems work. Why we have such amazing results, compared to so many water filter companies out there. So we have to get a bit technical to explain it but we will try to simplify.


      Journey Water Filter

Why Sagan Water Filtration Systems Work

Captivator Adsorbtion Media (CAM) filtration technology combines media science with the most advanced filtration materials available today. Sagan™ Filters has developed a filter design and manufacturing method which creates a multifaceted water filtration system. The process incorporates an electro-positive charge which attracts and pulls particles as small as virus out of the water, while still maintaining high flow. Sagan’s technology has been thoroughly tested and proven effective by independent water laboratories to consistently remove bacteria, virus, cryptosporidium, giardia and over 118 harmful chemicals, including chlorine, from water using this remarkable method. Incorporated into the Sagan™ Journey™ Water Filter, CAM filtration technology assures maximum protection in high risk applications, while providing high flows and long service life in an extremely compact, lightweight cartridge.

The good news is this – CAM filtration and the Journey™ Water Filter is designed not only for emergency use, traveling, camping, and outdoor activities, but is absolutely the best every day water filter bottle you can own.

DuraFlo 550 Water Filter

CAM filtration technology also applies to the DuraFlo™ 550 Water Filter in the AquaBrick™ Water Filtration System. CAM is a thermally bonded blend of microglass fibers & cellulose infused with nanoalumina fibers in a non-woven matrix creates an electropositively-charged depth filter media.

What does this mean?

Well, when assembled into a pleated cartridge, CAM offers a unique combination of efficiency, capacity, flow rate and low pressure drop at levels superior to any other filters in today’s marketplace. CAM water filter cartridges are assembled from FDA-compliant materials.

When studying this technology Sagan wanted to make sure each CAM pleated filter cartridge was able to satisfy the most difficult requirements in water treatment. The method of using the scientific principal of electropositive attraction/capture, CAM technology leads to a rapid and highly efficient adsorption of virtually all particle sizes. Captivator Adsorbtion Media has a high capacity for particles as large as tens of microns or as small as a few nanometers.

The Captivator Adsorbtion Media is an electroadsorptive filter (Strong electrical fields acting on the sensitive layer surfaces of a semiconductor gas sensor can alter its adsorption characteristics for gases and thus its sensing behavior) having a very strong positive charge potential. The charge is not electrostatic nor is it the result of chemical treatment. Instead, the media itself has an electrokinetic potential which naturally generates a charge field created by the mineral pseudoboehmite when the media is wet. A Pseudoboehmite is an aluminium compound with the chemical composition AlO(OH). It consists of finely crystalline boehmite. However, the water content is higher than in boehmite. In addition to the charge field, the media referred to in the filtration industry as a “depth filter”. It is made using wet-laid, non-woven manufacturing technology; basically a highly engineered filter paper having a mean pore size of about 1.75 microns. The charge field of the pseudoboehmite has an effective range of more than 1 micron so the entire void volume of the media is covered by the charge field. For example; For a particle to pass from one side of the media through the other it has to make its way through approximately 400 layers of fibers/pores. Most organic and inorganic, submicron particles in water between about 6.2-8 pH have some degree of negative charge on their surface so are removed by the positive charge of the CAM.

You can tell the media is becoming plugged as flow through the filter declines and it takes more pressure to maintain flow. Once the contaminants are adsorbed onto the CAM they are permanently retained. If the filter is back-washed or agitated in water, the debris coming off the filter are particles greater than one micron which were mechanically removed by the media, not electrically adsorbed. The electroabsorbed contaminants cannot be removed through any simple cleaning process. Trying to do so can damage the media and diminish efficiency. Our filter is specifically designed as a dead-end, replaceable filter for the reduction of the broadest possible range of contaminants. For best results it should be discarded when excessive pressure is needed to obtain filtered water. Approximately 300 gallons. This means the filter has done its job to provide you with safe and pure water. However, its effectiveness for providing healthy safe drinking water for your family on a daily basis has been our ultimate goal. We recommend our Journey™ Water Filter Bottle for daily use for adults and children alike, in all aspects of life. So, as our tagline says “Where will your Journey take you?”, you can be assured you are consuming the purest, safest water for you and your family no matter the adventure – from the gym to the jungle!