If asked about survival necessities, the first word that comes to mind is usually “water.” And why wouldn’t it? Humans can last 21 days without food, but only three to five days without water. It’s easy to think, “I can get water anywhere!” In theory, that’s certainly a true statement, especially with options like rainwater collection and natural bodies of water.
However,
there are lots of nasty things floating around in untreated water, like
Escherichia coli (E. coli,) cholera, typhoid fever, and bacillary dysentery.
This is why it is vital to consider hydration when preparing for a backpacking
trip, an excursion abroad, or even a home emergency preparedness kit.
A top
recommendation is the Sawyer Mini water filter. This tiny tool comes in at a
grand total of 2.4 ounces if you include the straw attachment and the 16 oz.
soft bottle that comes with the filter. Unlike the LifeStraw, which can only be
used as a straw, the Mini can be used to drink directly from a source. It can
also be screwed onto a small-mouthed bottle (like a standard 20 oz. water
bottle) or be attached inline to a hydration bladder hose.
The
Mini utilizes hollow fibers to filter bacteria, protozoa, E. coli, Giardia,
Salmonella Typhi, and pretty much any other matter that’s larger than .1
microns. That surpasses the Center for Disease Control’s guidelines for home
tap water filters1. The Mini is also a very lasting piece of gear,
able to filter a whopping 100,000 gallons. To put that into perspective, if a
person drinks a gallon of water every day through the Mini, he or she will have
over 270 years of clean water.
The one
true downside to such a powerful filter is clogging. While infrequent, the
water flow rate eventually drops and the filter needs to be cleaned out. This
is done with the included plunger by “backwashing,” or putting water through
the tube from the drinking end, with potable water.
Clogging
isn’t the only pitfall the Mini is susceptible to. After the first use, it is
possible for the fibers in the filter to freeze and become damaged in cold
weather. To prevent this, Sawyer advises keeping the Mini in a pocket or
somewhere it will be kept above freezing.
The incredible versatility and
light weight make it an excellent choice for those on the go or for backpackers
who must make the most of every inch and ounce. With superior filtration and
packability for only $25, it is one of the most affordable filters around.