How Different Kinds of Water Purifiers Purify Water?

With the increasing rate of water pollution, the requirements of more safety measures also increased in our life. Over the past few years, water purifiers have occupied significant importance in our daily lifestyle. Water is one of the primary physical needs of every human, and you can’t afford to drink unfiltered water. Little kids or veterans need pure water because any kind of virus or bacteria can harm them severely. To prevent any kind of unwanted water-borne disease, having a water purifier is certainly a must in the present.

Like the other appliances, the water purification technology has improved and reached an advanced stage now. Many renowned global brands are releasing new models regularly with new features and benefits. Not everyone is aware of all the available types of purifiers and their functions. You might have heard the complex names of the purifiers in the advertisements on television. But do you know how those purifiers work? Each type of purifier has different purifying technology, and different purification processes also.

So, if you’re planning to get one, how do you know which model or which purification technology is good for you? Don’t be provoked by the marketing campaigns of the companies. Those advertisements can just misguide you while choosing a particular product.

Purify Water

So, let’s know about all the types of purifiers and how those work.

How do different kinds of purifiers work?

1. Mechanical purifiers

These are the simplest forms of purifiers. These purifiers include no complex technologies and have a quite simple structure. These filters eliminate the dirt, sediments, and other infectious components in a physical way. According to the mechanical filtration process, these filters use physical barriers to purify the water. Those barriers are likely to be the simple ones, and those filtration kits are easily available in the market.

Generally, the customers get a certain micron rating in the label attached to the purifiers. The micron rating can tell how effective the filter would be in purifying water. A mechanical purifier with a 5-micron rating can eliminate the visible dirt from water. The purifiers with 1 and 0.5-micron ratings are more efficient in purifying the water in better ways. These are the oldest ones among all the other types of purifiers with new technologies.

2. Purifiers based on the absorption process

Haven’t you heard about purifiers with activated carbon filter? Most of heard about it. Now how it works in filters? Carbon is a chemical compound that can absorb all the impurities from the water. Not only viruses and bacterial impurities or dirt, but the activated carbon filter is also effective in removing chemical impurities too. An excessive amount of chlorine in the water can make the water contaminated too. But with an activated carbon purifier, there’s no chance to get any impurity in the water.

The cheap and common purifiers consist of granular activated carbon. On the other hand, the high-priced purifiers have carbon block elements for better results.

3. Ion-exchange features

This is another process that is highly efficient in purifying the water. The name of the feature tells a lot about how it works. A large number of current water purifiers brands are applying this technique in their products.

The machines with this feature include ion-exchanging resin. Most of the external water contains high calcium and magnesium levels. The ion-exchanging resins exchange the calcium and magnesium ions in the water with sodium and hydrogen ions. Through this process, the water gets purified and gets softer than before. The calcium and magnesium ions make the water harder while the ion-exchanging resins soften the water. That’s how the water purifiers with ion-exchanging features purify water.

4. Reverse Osmosis or RO

This is reportedly the smartest and the best way to filter the water. The purifiers with this particular feature cost much more than the other ones. You eliminate all the chances to get any water-borne disease if you have a purifier with this technology.

Now let’s come to the point. How does this technology work? Well, purifiers with this technology contain a semipermeable membrane. And when you fill the purifier tank with water, the water pressure makes the water pass through the membrane. While passing through the membrane, the water passes easily, but the impurities don’t. The impurities stay on the other side of the membrane. Later, usually, the user has to clear those impurities to filter water further. There is no doubt that this process is much more effective than any other technique.

These are the different kinds of purifying technologies that you’ll find in different purifiers. But apart from all these purifying technologies, all the purifiers commonly have a water filtration system. Almost every water purifier includes that system. That system clears the unnecessary particles and grains primarily. That system is also liable to remove the unnecessary taste or smell from the water. Sometimes the water of some filters taste different; some water contains smells too, naturally, with an active filter system that’s not possible. Because the system removes the smell or taste, if you’re getting smell or the water is tasting bad, it might be the time to replace the filter.

Also, there are other types of filters named in-line filters. These are the additional filters that you can install in the main water supply line of your house. Usually, these are small devices that can do the primary purification of the water.


The different kinds of water purifiers have different price ranges. The better the purification technology a purifier will have, the more the price will be. To be true, all the purifying processes have advantages and disadvantages. You have to determine how much you are ready to spend for the purifier. Also, you need to decide what kind of water you and your family require. If the water from the regular supply line is not too dirty, there’s no need to get an expensive model. Choose the right purifier with the right purification technology according to your requirements.

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