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Product Description
A convenient alternative to bulky filtration systems, the LifeStraw universal water bottle filter adapter kit attaches directly to your water bottle, so you can carry safe drinking water on any adventure. The kit comes with a LifeStraw two-stage filter, a wide-mouth screw-on lid, a standard screw-on lid, a leak-proof cap, and a mesh carrying case Read More
NPJBYes, you are correct, and the Sawyer products are widely used by backpackers, and out on trails with good success.
However 0.1 microns is still not a small enough pore size to filter out water borne viruses like Hepatitis, Sars, Echoviruses, Adenoviruses, Astroviruses, Rotaviruses, Toroviruses, Noroviruses, Polioviruses, etc.
There are many more viruses in existence, but the viruses referenced above are the most widespread viruses that affect humans and their drinking water.
For example, the Poliovirus, Cocksaxie A virus, and the Echovirus that causes meningitis are all different types of Enteroviruses.
Let's just say it can get complicated when discussing viruses.
Most viruses fall into the molecular size or range between 0.025 microns, up to 0.1 microns, so viruses are much smaller than the pore size of the Sawyer filters, and most filters for that matter.
On the other hand, 0.1 micron filters should be able to filter out the more commonly encountered bacteria, (Salmonella, E. Coli, Campylobacter, Listeria), Protozoa (Giardia, Cryptosporidium) and parasites.
The CDC recommends boiling as the most efficient way to kill viruses, along with chemical treatment. https://www.cdc.gov/healthywater/drinking/travel/backcountry_water_treatment.html
However...Boiling water does not remove heavy metals, chemicals, or pesticides!
The Sawyer filters also do nothing to improve the taste of the water and do not remove heavy metals, chemicals, or pesticides.
It is widely reported that Mercury, Lead, and Arsenic are being found at high levels in water in various places, and do you really want to ingest whatever pesticide or chemical a farmer may have sprayed near his cow pond to control insects, or weeds, etc?
Rather than have a filter that has deficiencies in its filtering capabilities, I would rather use the Renovo MUV Eclipse water filter, and the Survivor Pro which are both reasonably priced and versatile, in conjunction with boiling water when possible.
Both filters will remove over 99% of
viruses, bacteria, protozoa, parasites, heavy metals, chemicals, and pesticides!
http://renovowater.com/muv-eclipse-water-filter/
https://www.survivorfilter.com/collections/all/products/pro-series
https://www.survivorfilter.com/collections/all
Following are a couple of links to videos that talk about water filtration, molecular size, viruses, etc.
https://www.youtube.com/watch?v=HC-1rlRks64
https://www.youtube.com/watch?v=h9j2eQfEoZI
GarrettzAh. I have tried a Kleen Kanteen lid on the Vargo and, we they say, it doesn't fit. The diameter is right but the threads don't match. If that's the size this filter is, I'd imagine it won't fit the Vargo. Bummer.