What is the Difference Between a Water Filter and a Water Purifier?

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What is the difference between a water filter and a water purifier ?

Taking a shower. Washing dishes after dinner. Drinking a glass of water throughout the day… You use water for everything! No doubt you want to be sure your water is clean and healthy.

But when you start looking for options to improve your water and get rid of pollutants, you easily can get confused with complicated explanations. Fortunately, we are here to help. Indeed, what is the difference between a water filter and a water purifier and what does it mean to have demineralized water? Let’s take a look.

Water Filter

Water filters use a mixture of different types of media to separate pollutants and prevent them from your water.


Whole House Filters

Just like it sounds, the whole house filtering system comprises of different filters and is connected to your main water line to reduce pollutants throughout your house.

Most of the whole house filters work with a sediment pre-filter that traps rust, sediment and silt. Then, the water flows to your copper-zinc & mineral stone to filter out chlorine, water-soluble heavy metals, and scale and inhibit bacteria and algae growth. From there, the water runs to the activated carbon filter. This filter works to diminish herbicides, pesticides and other chemical compounds that may be present.

Whole house filtering solutions are also easily customized depending on your water needs; water conditioner that reduces scale formation in salt-free pipes; submicron post filter to reduce any residual sediment and organic particles in your water, even microscopic; UV filter so you never have to worry about the presence of bacteria and viruses in your water.

Shower filters

If you have your own showerhead, you can get an option that simply attaches to it.
Shower filters help to heal skin and hair by reducing the chlorine, chloramine and synthetic chemicals that can cause damage and excessive drying. Natural carbon in a coconut shell, which is used like filtering media in Aquasana shower filters, increases the pH of the water and removes more than 90% of chlorine and chloramine and other aggressive chemicals, while copper/zinc media reduces chlorine further reduces chlorine and improves water pH balance.

Drinking filters

Drinking filters can be of several types: from options that are on CounterTop or a Dispenser to a version that can be installed UnderCounter.

Many use a combination of activated carbon/catalytic carbon and ion exchange to trap and prevent these unpleasant pollutants from entering your water, such as chlorine, chloramines, heavy metals, chlorine-resistant cysts, such as giardia and cryptosporidium, pharmaceuticals, and other.

Unfortunately, if your drinking water filter does not use Claryum® certified selective filtration technology such as Aquasana, your filter will also remove all the healthy minerals your body craves, such as calcium, magnesium and potassium.

Water purifiers

Water purifiers come in different shapes and sizes. They not only remove what filters are removing, but they also remove all minerals from the water. This is done using two cleaning methods:
* Reverse Osmosis (RO)
* Distillation
Reverse osmosis works much like a filter, but instead of using a trapping media, it passes all particles of water through a very small semi-permeable membrane. By pushing water through this semi-permeable membrane, it screens all particles that were too large to follow the path of the water.
Distillation, on the other hand, is when water is boiled and steam is captured. Steam is collected and cleaned.
Unfortunately for both of these processes, if your Reverse Osmosis system does not contain a remineralizer, you drink demineralized water. That is why it can harm your health.

Demineralized water

Although at first glance it seems that a water purifying system is an excellent option, in fact, it deprives the water of minerals useful for the body, such as calcium, magnesium and potassium.
So, what do we mean by useful minerals?
The World Health Organization reported that “drinking water must contain minimum levels of certain essential minerals.” They identified these minerals as: “Ca, Na, K, Cl, Mg, Fe, Zn, Cu, Cr, I, Co, Mo and Se [which] are unequivocally essential for human health; although not commonly realized drinking water provides some of these elements.”

Now, what happens if you drink demineralized water? First, demineralized water is more acidic. When you consume an acidic substance, your body is forced to pull out the minerals that you carry in your bones and teeth to form bicarbonates, which neutralize the acid. Secondly, when fluids in your body contain more acid than alkaline, more free radicals are produced and the risk of developing cancer increases, as it has been shown that cancer cells are more productive in a more acidic environment.

Water filter vs. water purifier vs. demineralized water

If you still prefer to use a water purifier, find a reverse osmosis system that purifies your water and also comes with a remineralizer.
For those who want to filter water, Aquasana offers many excellent and affordable options to protect you and your family from contaminants in your water from the tap. Our multi-process filtration systems remove unwanted contaminants that you don’t need but keep inherent healthy minerals. Looking for a water filtering solution? Aquasana Thailand offers a range of products including Whole house water filtering solution, Drinking water filters and Shower filters, that also reduces all of the bad and leave in all of the good minerals your body craves. Because drinking clean, healthy water means, eventually drinking with confidence.