What I Learned About
Household Water Filters
I've learned that effective
household water filters are difficult to find. Some of the
popular products that you see in department stores should not
be called a home water purifier, at all.
They offer nothing more than chlorine filtration. That's
important, but filtration of other contaminants is even more
important. Let me explain why.
If you're like me, you may not have known that chlorination
causes the release of hazardous byproducts that are known
carcinogens. The "safe" level of exposure developed by
regulating authorities was based on the assumption that an
individual's only exposure was through drinking or consumption.
They also assumed that every person weighs 175 pounds or
Most household water
filters do not remove those chlorination
byproducts, because it takes a little more than granular carbon
to trap them. In order to find one that does, you have to read
product performance data and look for "THM" reduction. That's
the abbreviation for trihalomethanes, a group of eight or nine
chemicals that are created when chlorine reacts with bacteria
of different types.
The only reason that we know
about them is because researchers have been studying them and
how we are exposed to them. They learned about the cancer
connection many years ago, but those in power were afraid to
publish the data, fearing that the general public would not
understand and call for an end to chlorination.
All that I wanted was a
household water purifier that would remove them. I know that
chlorination is necessary to prevent waterborne illnesses. I
think that most people realize that too.
Researchers have also informed
us that these chemicals become airborne during a shower and
when we are cooking with unfiltered waters. Exposure even
occurs when hand-washing dishes. So, you need a home water
purifier for the shower and you need to leave
the kitchen filter in the "on" position when doing dishes or
There are only a couple of
household water filters for the shower that reduce THMs. So,
again, they can be difficult to find, but it is important to
make the effort.
If you get a consumer
confidence report, it may tell you that the THM level is well
below governmental limits. You have to remember that those
measurements were taken at the treatment facility and levels
continue to rise as it makes its way to our homes. Everyone
whose facility uses a disinfection process needs a home water
purifier and that's practically everyone in all of the
I eventually found two
filters for under the kitchen sink that reduced THMs
by more than 99%. One cost less than $200. The other cost
nearly $800. The difference was that the $800 system contained
a reverse osmosis step, which is unnecessary if you have a
submicron particle filter and actually, that's pretty easy to
Most any home water purifier
will remove cysts and that means they filter down to one micron
or less. I hope this info helps you find affordable and
effective household water filters. I know it helped
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