The Basics Of Common Water Filter Technologies

  • 08 Mar 2021 05:58
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Are you considering buying a water filter for your home? Tap water contains all kinds of pollutants and fluoride that can be harmful for you and your family members. In such a situation, investing in a good water filter makes a complete sense. It is indeed a very strong point to remove all the impurities from your drinking water.

However, with so many new technologies offered by various brands in the market, it can be a bit difficult to choose the one that suits your budget and requirements in the best possible manner. In most cases, consumers are not even aware if the technology they bought does any good to them.

Since all branded water filters use small number of technologies to provide you with best water filtration system, it is not necessary that each one of them is as good as another. On the other hand, having a good idea about the pros and cons of each technology used will give the advantage of determining the best system in a calculative manner.

Different Types Of Water Filters And Its Benefits

Needles to say, purchasing a water filter for your home can be a bit overwhelming given there are a wide array of products to choose from. In this article, we’ll help you understand the basics between common water filter technologies used in the filtration systems nowadays. It will help you make the right purchasing decision.

Carbon/Activated Carbon

Activated carbons chemically bond with contamination in the water and remove them through the filtration process. Carbon filters are available in many types. Some carbons remove only chlorineand improve the color of water, while others target a wide range of contaminants including lead, volatile organic compounds, asbestos, mercury and so on. They also remove a wide range of inorganic contaminants such as arsenic, nitrate, fluoride and hexavalent chromium. Carbon activated filters are available in two options: Carbon block and Granulated activated carbon.

Ceramic and Mechanical Filters

Ceramic and Mechanical filters, both consist of small holes throughout the material, which works by blocking the contaminants like sediments and cysts. However, the disadvantage of using this type of filtration system is that they do not remove chemical contaminants and thus, are only considered suitable for boiled or chemically treated water.


As the name suggests, this kind of filtration system uses ion exchange process, which removes mineral salts and other electrically charged ions from water. However, the process may not be capable of removing non-ionic components, microorganisms and other volatile organic compounds from water.


This is one of the oldest technologies used in water filters. In this technology, the water is heated up to a certain degree that leads to vaporization. After the vaporization process, the steam is condensed back to water, making it suitable for use. This is a highly effective process to remove minerals, bacteria, chemicals and viruses from water due to its high boiling point. On the down side, it cannot remove volatile organic compounds, chlorine and trihalomethanes.

Ion Exchange

Unlike deionization, this technology passes water over a resin which in turn replaces undesired electrical charged ions with desirable ones. The impact of this process leads to water softening, which replaces magnesium and calcium with sodium.


Ozone is often used in conjunction with other filter technologies for better results. This process basically kills bacteria and microorganisms, but does not have any effect in removing chemical contaminants. This is reason you will always find this technology incorporated with other technologies in all the models that you find.

Reverse Osmosis

In this process, the water is pushed through a semi-permeable membrane which is designed to block particles that are larger than water molecules. Reverse osmosis can effectively remove any kind of contamination, which are subsequently not even removed by activated carbons.

However, quality of the filtration system may vary tremendously in terms of membrane system and carbon filter used in the manufacturing. Moreover, reverse osmosis filters use twenty times more water than other systems.

UV (ultraviolet)

Water filters that use this technology use ultraviolet light to kill bacteria and microorganisms present in the water. However, they fail to remove chemical contaminants and thus, often made in conjunction with other high grade technologies.

So now that you are aware of different and most commonly used technologies in water filters nowadays, choosing the most suitable ones would not be a problem at all. Analyze the functioning of all the technologies and see which one best suits your requirements in general. Since the quality of water is different in every part of the world, choosing the best and most suitable water filter technology will help you get clean and hygienic drinking water.

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Steffie Hall By, Steffie Hall
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