June 20, 2008, Newsletter Issue #117: Comparing Water Filtration to Reverse Osmosis

Tip of the Week

While it is possible to treat drinking water through the process of reverse osmosis, this technique is not considered to be as desirable as the use of water filters for drinking water decontamination.

What is Reverse Osmosis?

Originally developed to be a technique for removing the salt from seawater, the process of reverse osmosis can also be used to treat freshwater as a means of making it safe for human consumption. The process of reverse osmosis involves using pressure to force water to move against it’s natural flow pattern through a semi-permeable membrane. This technique is effective for desalinating saltwater. However, it doesn’t compare favorably with water filters when it comes to removing contaminants from water.

Why Are Water Filters More Effective?

When you compare water filters to reverse osmosis, it is clear that filtration is the better choice for drinking water. The best water filters offer sub-micron filtration, removing even the tiniest contaminant particles. Reverse osmosis only effectively removes particles that are actually larger than water molecules. It can remove heavy metals and many types of minerals from water, but it can’t remove chlorine or many chemicals. These tiny contaminants simply pass through the membrane along with the water.

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Do You Need A Shower Filter?

While everyone might not "need" a shower filter, everyone can certainly benefit from using a quality shower water filtration system.

People with respiratory problems, skin disorders or people who live on water systems that use chlorinated surface water, and most do, certainly should use shower filters.

Asthma, bronchitus, eczema and many other common ailments are very negatively affected by inhalation and absorption of chlorine and other chemicals while showering. Breast, colon and bladder cancer have all been linked to exposure to chlorine from drinking and shower water.
"Cancer rates for people on chlorinated water systems is 93% higher than for those on non-chlorinated water systems..." U.S. Council On Environmental Quality

Shower filters also offer great cosmetic benefits. Chlorine robs the skin and hair of their natural protective oils and "friendly bacteria", causing dryness, premature aging and many other potential health and asthetic problems.

Shower filters are easy to install, easy to use... and can be a very healthful and enjoyable addition to our daily lives.

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