Charcoal To One-Micron Sediment Filters: The Range Of Shower Head Filters - By: Scott Staudt

Being able to catch only the sulfur and chlorine in your shower water, Google gives this water filter (the cheapest) a price tag of only $10. The most expensive filter costs $379.90 (on sale!) and removes 95% of chlorine, sediment, total organic carbon and volatile organic compounds.

Quite the difference. Given a closer look, however, what do these contaminants actually mean? Are these just terms thrown out to catch a buyer's eye? Or are they real a danger?

Total Organic Carbon (TOCs)

Simply put, Total Organic Carbon is used as a general metric of water quality. It is the total count of carbon in the sample that is not in an inorganic compound. So, if your TOC count is high, it's possible that there are detergents, herbicides, or pieces of decaying plant matter in your water. Mostly, public water systems succeed in keeping the TOC content as low as possible, although some of these contaminants can get through.

Volatile Organic Compounds

Benzene or trichloroethylene in the water make up the metric known as VOCs or Volatile Organic Compounds. Accidental spills or inattentive workers might introduce chemicals such as trichloroethylene, for instance, into the ground water. Gasoline or oil leaks might contaminate the water with benzene. However, these occurrences are generally isolated to old industrial and agricultural regions that use powerful chemicals, but water tests might be wise.

Chlorination

The classic anti-contaminant. Chlorine is usually used to treat and decontaminate water at treatment facilities, making it safe to reintroduce to the public system. Chances are you've gone for a dip in a swimming pool at one point, and if so, you've probably gotten a bit of mild irritation or frayed hair if you stayed in too long: that's the power of chlorine, the most effective basic water disinfectant. Fortunately, even the cheapest charcoal shower filters will get rid of chlorine traces in the water.

Usually, municipal water sources remove TOCs and VOCs very well - paying $400 to remove harmless trace amounts borders on wasteful. Even then, the amount of chlorine in most bath water isn't enough to really harm you - although if you take especial care of your hair, it might frustrate your efforts. If the worries are still sticking with you, however, and you can't find a way to push them aside, a far more inexpensive sixty dollar shower filter will do all that, besides restoring pH balance and culling heavy metals.

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