We live in a modern era where we monitor everything to make it as perfect as it can be. Whether its food, health, clothes, or anything, we look towards a healthy and perfect lifestyle. But we often overlook one of the vital factors which are necessary for a healthy lifestyle; drinking clean water.

Water is very important for all living things. It is essential to keep the human body healthy and functioning. The human body is made up of about 60 percent water. But still, we neglect the importance of clean and purified water.

In this guide, we are going to discuss how you can get water that is free from unhealthy contaminants using a product called a water ionizer.

We have done the breakdown to all the minor details so that you can easily understand what is a water ionizer, ionization process, and how it works? What are the benefits of alkaline or ionized water?

What are the health benefits of using water ionizers? Best water ionizers in the market?

We have explained all the information that you need to know before buying one including reviews of the best water ionizers.

Introduction to Ionized Water

Before understanding about ionized water, you need to know what are ions? And what are their types? We have thoroughly discussed, what are ions and types?

What is the Healthiest Water to Drink?

There are different types of water but the best one is said to be ionized water because it contains minerals including calcium, magnesium, and sodium. This ionized water is popular for the benefits it provides to the human body.

What Is Ionized Water?

The water that passes through soil or rock absorbs different minerals on its way including minerals like calcium, magnesium, and sodium, etc. These minerals, later, become ions through ionization or by loss/gain in electrons.

There are two types of Ionized Water; Alkaline and Acidic. This classification is based on the pH levels of the respective water.

Before probing into types of ionized water, let’s check out what is pH? In chemistry, pH is a scale used to measure the acidity of a water solution. It ranges from 0 to 14.
Alkaline water has a pH greater than 7. Any solution with a pH equal to 7 is said to neutral and solutions with a pH less than 7 are called acidic.

pH is a logarithmic scale which means a small numerical change can have big effects on human bodies. For example, a solution with pH 1 will be very acidic while a solution with a pH around 13 will be very alkaline.

As every organ in our body needs a different pH range to function properly, making pH values very important.

Now, that pH is discussed let’s move onto the two types of Ionized Water.

5 Best Alkaline Water Ionizer Machines In 2021

Ionized Alkaline Water

Alkaline water has a pH higher than regular drinking water. Therefore, some say that it can help neutralize the acid in the human body. Normally, regular water has a pH of 7 while alkaline water has a pH of 8 or more. Also, alkaline water is made up of different minerals such as potassium, bicarbonate, magnesium, and calcium. When these minerals consumed can have many benefits.

Ionized Acidic Water

This type of water has a pH level of less than 7. It increases the oxidation levels in the water making it more suitable for cleaning purposes. It can be used as cleaners and sanitizers too.

Both of the types discussed are useful in certain ways. They both affect human bodies in different ways; acidic water is useful for cleaning and as sanitizers, etc. while the alkaline water can help in a different number of ways.

What Are the Benefits of Drinking Ionized Water?

There have been various claims going around about the use of alkaline water but most common ones say that it can;

  • Neutralize the Acid in the Body
  • Slow Down the Aging Process
  • Improve Acid Reflux
  • Prevent Cancer and Many Other Diseases as Well

The above-mentioned are various claims from small research. Research regarding alkaline water is ongoing. Let’s get into some more details.

Alkaline water bottle contains alkaline minerals and agents than can reduce the oxidation from our body. ORP is the ability known as Oxidation Reduction Potential. This acts as an antioxidant. The more negative the ORP value the more anti-oxidizing it will be. When oxidation levels get high in the human body, it leads to oxidative stress which has many side effects including cancer, diabetes, asthma, male infertility, and heart diseases as well. Source

To neutralize these oxidizing agents in our bodies we need antioxidants which we get from alkaline waters. They help reduce the oxidizing agents and prevent the human body from many diseases. In a recent study, it has been observed that these alkaline waters reduce the harmful effects that oxidation has on the human body.

Another study shows that the use of alkaline waters can be beneficial to people who are suffering from a disease known as acid reflux as the use of alkaline waters effect on stomach enzyme pepsin. So, alkaline water is a life savior for people having symptoms of acid reflux Source.

If the acidity level in the bloodstream gets high, it can lead to several dangerous infections. Even though various systems in our body keeps our blood pH regulated but sometimes you need to do something about it. For this purpose, you can use alkaline water. It can help minimize these infections as alkaline water neutralizes the acidity levels in the bloodstreams.

Alkaline water can help provide better hydration. In a study of 2016, researchers observed that people who drink alkaline water have reduced blood viscosity, which shows improved hydration.

Moreover, it provides the human body with many minerals that the body needs to function properly.

The Differences Between Alkaline Water and Regular Water

The main difference between the structure of alkaline and regular water is their pH values. Alkaline water ranges from pH greater than 7 while regular water has a pH value of 7.

There have been many studies that show that the use of alkaline water is more beneficial to the human body than regular water.

As alkaline water has many minerals that are not present in basic regular water, it gives alkaline water a plus point. It provides many minerals to the body so that it functions more properly.

According to some studies, the use of alkaline water can provide better hydration and improve blood flow as well.

How to Make Ionized Water?

If you know about the benefits of ionized and alkaline water, the only question that comes across the mind is how to generate or get that ionized water? There are multiple ways through which you can make water more alkaline.

Some filters can add minerals to water, consequently making it more alkaline. These filters are capable to add minerals but they aren’t as successful in changing the pH and overall effect of water. The pH of water gets minimal change as it depends on the pH of the original water before going through these filters.

You must be wondering how to make ionized alkaline water at home which can be really easy by using any of the following methods:

  1. Alkaline Water With Baking Soda
  2. Alkaline Water With Lemons
  3. Alkaline Water With Cucumber
  4. Alkaline Water With Himalayan Salt
  5. Alkaline Water With Apple Cider Vinegar
  6. Alkaline Water With Ionizer

But the most effective and powerful ways to make water more alkaline and ionized is by using a product known as Water Ionizer or Water Ionizer Machine.

What is a Water Ionizer Machine?

A water ionizer, also known as an alkaline ionizer is an electronic home-use machine that increases the pH of the water. It increases the pH of the water to make it more alkaline.
It not only helps in changing the pH to make it more alkaline but is also capable to make the ORP (Oxidation Reduction Potential) of the water more negative, which prevents many harmful effects of oxidation in the body e.g damaging body tissues, proteins, and DNA. It acts as an antioxidant to save us from these harmful effects.

It operates by using electrolysis to separate the incoming water into both acidic and alkaline water. The alkaline stream is known as alkaline water which has many health benefits.

How Does a Water Ionizer Work?

Water Ionizers operate by using the electrolysis process. It changes the structure of water on the molecular level. It separates the incoming water into two streams; acidic stream for oxidized acidic water and an alkaline stream for antioxidant-rich alkaline water. Moreover, water ionizers come with buttons and a display so that you can get ionized water of whatever pH you want. Its range varies from product to product. Some of them can provide the range as low as of pH 3 to pH 12. Let’s discuss the working mechanism of water ionizers.

Water Ionizer Working

Water to be purified is fed into “in” tube section of the ionizer. This can be simple tap water, etc that you want to purify. It then passes through its internal filters removing many contaminants from it. It purifies water from many contaminants and the thing you need to know here is that these filters are EXPENSIVE and they don’t completely purify the water. Also, they need to be changed after some time. They usually last about a year. Also, they don’t completely purify the water and some impurities are still there.

This water after passing through internal filters undergoes the process of electrolysis. There are two electrodes from which water passes; positive and negative. Then this water goes over the plates in the ionizer. A low voltage electric current exists in this section which will cause the minerals and impurities to be attracted to the electrodes. Some are attracted to the positive electrode while some are attracted to the negative depending upon their chemical properties. Consequently, this separates the water into two streams, acidic and alkaline.

The acidic water comes out from a separate hose. It acts as an anti-bacterial and can be used as a sterilizing agent to clean, wash, etc. This water is used for external purposes only.

The alkaline water comes out from the faucet and can be collected. This alkaline water is what is advised to drink because of the health benefits it has whereas you can know more about these in the following ionizer benefits article.

Moreover, it lowers the ORP to neutralize the oxidation in our body. The more negative value of ORP the better it will be for the human body. This results in more antioxidant-rich water which will help the body to fight again the oxidation. As antioxidant foods are good for health, this antioxidant water can also be healthy for the human body.

Is It Safe to Use Water Ionizers?

These water ionizers are safe for health as they are

Antioxidant-rich Water

This is an important factor as our body is mostly acidic by nature so we need alkaline water. Being rich in antioxidants can’t harm human bodies rather they will prove to be beneficial.

Control Over Ph of the Water

As you have complete access, you can easily select the exact pH you want to receive. Alkaline water ranges between 7 to 8 pH.

So these water ionizers aren’t harmful in general. However, there is one possible harm. Water ionizers that use salt for electrolysis can be harmful. As this salt when passed through plates and electrodes can produce different substances among positive and negative electrodes, which can result in the formation of sodium hypochlorite or Chlorine. This is dangerous for health and is mostly found in laundry bleach, etc.

Water Ionizer Buying Guide

Now, you know about ionizers, their working, and health benefits. You should consider these things before you decide to buy one. To help you with buying the right ionizer, here is a list of best water ionizers available in the market. You can choose the one which fits your requirements and of course the budget.

We have short-listed some factors that you need to know, let’s check them out.

pH range of Ionizer

As discussed earlier, the pH value of water is the main selling point of these alkaline machines. pH value decides if a solution is acidic or alkaline.

Substances over 7 pH are said to be alkaline, while those of 7 pH to be neutral and less than 7 pH are called acidic.

Acidic water has its purposes, while alkaline has its own. So, look for a product that meets your needs. If you are looking for alkaline water, look for products that provide a higher range and vice versa. We have included the products in our top 8 products list that can range between low pH and also of high pH.

ORP Range

ORP (Oxidation Reduction Potential) is the word you will hear a lot when discussing the features of water ionizers. ORP of a substance is its value that reduces oxidation in the human body. A positive ORP value means that it more oxidant in nature or more harmful as well. A negative ORP value shows that is more antioxidant
In terms of water, if it has less value or negative value of ORP it is more beneficial.

If a body has a more oxidation level, it can be dangerous for health. It can damage vital components of the body; cells, proteins, lipids, and DNA known as Oxidative Stress. Studies have shown very harmful effects of oxidation in the human body.

You need to look for water ionizers that provide a low value of ORP so that it can neutralize the harmful effects of oxidation in the human body. The products that we have mentioned provide low values of ORP.

Number of Plates

These plates are an important part of the water ionizer. Water runs through these plates when an electric current is applied and it splits into two streams. So, you need to look for a product with more plates. The more plates a product has, the more powerful it is and can produce water with a higher range of pH and better ORP it will have that will add more antioxidants into the water.

Water Filters

These products have their internal water filters to purify the water. The more expensive a product is, the better it will have the filters. The thing you need to know is that these filters last for a short time, mostly a year or so. After that, they need to be changed. These filters are mostly expensive.

So consider the lifespan and cost of the filters before purchasing one.


The installation of all the products that we have included is very easy. You don’t need a lot of know-how. Only basic instructions in the instruction manual included with the product can help you set it up.


Before you go spending your money on these ionizers, make sure to get a product that has a good warranty. Some products have a lifetime warranty. The products we have included in our review section are mostly providing with a 2 or 3 years warranty. Make sure to remember the warranty aspect.

Detailed Review of 7 Best Water Ionizers Machine in 2021

We have done the review for the top 7 water ionizers that will help provide you with many health benefits. Without any further delay, let’s indulge in the reviewed products one by one.

1. Aqua Ionizer Deluxe 9.0 (EditorsChoice)

When it comes to drinking water, the Aqua Ionizer Deluxe 9.0 is the first one on our list. It is a modern, advanced, and powerful alkaline home ionizer which is great for daily home use. It provides all the benefits of Alkaline Water.

This product has many renowned quality certifications. Moreover, Simply press the button against the desired water option and you’ll receive it in no time.

Aqua Ionizer Deluxe Features
  • It can change the pH of the water. This alkaline water ionizer ranges between as low as 5 pH to a maximum of 11 pH making sure that our body’s acidity is maintained.
  • It increases antioxidants in water and reduces ORP levels to make sure that it neutralizes oxidants in our bodies. It’s ORP ranges between -600 to +600.
  • It increases hydration levels as well. You will not prefer bottled water anymore if you use this once. Moreover, it has an Active Carbon Water Filter which will help remove the contaminants from the tap water.
  • Easy to use as it provides full control over the water. You can quickly adjust the alkalinity of water by a friendly display and adjust the pH level you want.
  • It can filter up to 4000 liters per filter.
  • Moreover, it is providing with great 7 healthy water options that include; Cooking, Coffee/Tea, Daily Drinking, Initial Drinking, Purified Water, Cosmetic, Household Cleaning
  • This is all in one use appliance. You can easily use this ionizer and set it up anywhere in your house be it the kitchen, bathroom, or any other faucet. It is very easy to use. Simply turn it on and it will change the tap water with antioxidant-rich alkaline water for drinking purposes.
  • It can produce alkaline water of pH from 5 to 11
  • Up to -600 ORP levels.
  • 4000 liters per filter.
You Should Consider This Ionizer as It Will:
  • Help Rehydrate the Body Cells.
  • Improve Energy Levels
  • Increase Antioxidants in Water
  • Protects Skin as Well
2. Aqua Ionizer Deluxe 7.0

The next product in our list is this, Aqua Ionizer Deluxe 7.0. This product is handy and a great option if you’re looking or more negative ORP levels. This water ionizer can generate up to -800 ORP levels. This product too comes with 7 healthy water options through a simple interface. This water ionizer is proven to be beneficial and has certain certifications as well.

Aqua Ionizer Deluxe 7.0 Features
  • High quality and long-lasting filter which can filter out 1585 gallon of water and usually lasts about a year.
  • It provides control over the ph of the water which ranges between 4.5 to 11 ph.
  • Antioxidant potential lies between -800 to +1000 ORP.
  • The active carbon filter removes most of the contaminants from the water.
  • Increase the ability to stay hydrated and aids in detoxification.
  • Advanced 7-electroplate technology used that is a long-lasting and energy-efficient plate system.
  • Self-cleaning feature to reverse the polarity and auto-plate washing after 10.5 gallons.
  • It comes with an intuitive backlit LCD.
  • 5-year warranty.

It can be easily installed with any standard faucet of your house. You can set it up anywhere in the room within minutes. Easy to use

  • pH range: 4.5 to 11
  • ORP range: -800 to 1000
  • 4000 liters per filter.
Ideal for Home Use
  • Suitable for Drinking.
  • Better in Taste
  • Suitable for Skin, Hair, Plants.
  • It Lowers the Body Acidity and Restores Electrolytes.
3. Aqua Ionizer Deluxe 7.5

Aqua Ionizer Deluxe 7.5 is a pro water ionizer that is a great addition to your family. It will provide you with ionized water; alkaline and acidic both. Both have separate benefits. It is environment-friendly as you will stop using bottled water after this, resulting in a reduction in plastic water bottles.

This product has multiple certifications that guarantee the quality of the product.

Aqua Ionizer Deluxe 7.5 Features
  • proves hydration, can be used for skin care and as a cleaning agent as well.
  • Advanced filtration technology to purify the water from many contaminants.
  • Produces a pH of 4.5 to 11.
  • Increase antioxidants in water up to -800 ORP levels so that it is alkaline water.
  • Long-lasting filter that can run-up to an average of 1 year. One filter lasts about 4000 liters of water.
  • Advanced 7-electroplate technology.
  • Self-cleaning; auto cleans the plates and reverses the polarity after each use.
  • 7 healthy water options including 4 ionized alkalines, 1 non-ionized, and 2 ionized acidic preset with simple buttons against their name.
  • Easy to use.
4. AquaLiv Water System A305

This product on our list is the best choice for kitchen use. It can easily set up at a kitchen’s tap and create energized and structured alkaline water. People who have used this product have great reviews about it. They have reported;

Increased energy, along with reduced allergies and also weight loss.

The basic reason for its popularity is its working mechanism. It doesn’t operate on electricity to generate artificial minerals which have side effects as well, rather it creates minerals with natural alkalinity.

Aqua Ionizer Deluxe 7.5 Features
  • This product is certified by a 3rd party laboratory. Nsf certified components.
  • Its filter lasts about one year or 1000 gallons and its replacement cost is just $99.
  • A quick installation kit included.
  • 2-year warranty.
  • This Product is Suitable for Kitchen Use.
  • Filter’s Replacement Cost is Not as Expensive as Other Products
5. Pure Hydration Antioxidant Water Ionizer

Pure hydration next generation’s water ionizer is what you need for your home. It is not that ionizer on which you, after spending your money, regret your decision of buying it rather it is the product that satisfies your needs.

If you are looking forward to drinking hydrogen-rich alkaline water, this product can help you meet your needs. Let’s look at some key features of this product.

Pure Hydration Antioxidant Water Ionizer Features
  • It is super budget-friendly as the features that it has can cost a lot. Plus, it on sale now.
  • It has infrared sensors, that will sense your hand near it and will turn it on. When you move your hand back, it will turn it off.
  • It simply changes the tap water into antioxidant hydrogen-rich alkaline water with a great taste. Its oxidative reduction potential levels are around -450.
  • It is a high-performance water ionizer with ph 9-9.5. It will help you feel differently.
  • No electricity needed as it is an all-natural water ionizer and runs operates without electricity.
  • Follows an all-natural approach thus creating no wastewater.
  • Easily can be set up with any faucet and very easy to use.
  • Led reminders for filter changes
  • Easy, affordable, great looking – all in one water ionizer.
  • Delivers balanced water loaded with all antioxidants and a balanced ph as well.
  • It helps remove toxins from the body; kidneys, lungs, and digestive system.
  • pH value ranges between 9-9.5
  • ORP levels are around -450
6. Velaqua Alkaline Water Machine

Good option if you are looking for something more portable. It follows the natural way of purifying and filtering water.

Velaqua Alkaline Water Machine Features
  • It uses only gravity and natural minerals to purify it.
  • It doesn’t operate on any electricity or chemicals, etc.
  • It’s Proprietary Energy Infusion technology that adds up essential earth minerals to produce healthy water.
  • Not expensive, anyone can afford it easily and get benefited from it.
  • It filters the water and purifies it from contaminants and particles.
  • Creates water with high antioxidant properties which means less value of ORP to neutralize oxidation levels in our body.
  • Easy to use and setup.
  • Transforms normal water’s pH up to 9.5 NATURALLY.
  • Produce pH up to 9.5 NATURALLY.
  • Portable.
  • No electricity used
7. Vitafilta Countertop Water Filter and Cooler

This water filter in our list one of the best water filter and cooler which can provide cold water with adjustable temperature.

Vitafilta Countertop Water Filter and Cooler Features
  • It guarantees that it will make your simple tap water into a very healthy and great tasting water.
  • Its advanced filtration system is responsible for removing contaminants out of the system and provides a refreshing and clean taste.
  • It can filter up to 3 gallons of regular tap water instantly.
  • It has another feature of fast flow tap, you can fill in your glass and bottles in no time with it. With 3 gallon tank, you can drink cold water in no time. You can adjust the temperature down to 40ºf through a simple display and buttons.
  • Removes lead, heavy metals, chlorine, etc.
  • Its filter lasts for 130 gallons or 6 months on an average.
  • 90% cost saving than bottled water.
  • Compact design saves up space.
  • Its filter is approved by the FDA.
  • Filter Lasts About 6 Months.
  • Cost-saving Than Bottled Water

Best Water Ionizer Filter System

Aquaspree Exclusive Alkaline Water Filter

This water ionizer is a high-performance product that can transform your tap water into alkaline by adding more minerals to it. Each drop passes through multiple layers; high-end filters, magnetic fields, minerals, and then ionizes into healthy alkaline water suitable for drinking and a healthy lifestyle. It meets the standard requirements of the WHO(World Health Organization) for drinking water.

Vitafilta Countertop Water Filter and Cooler Features
  • Stage 1 is of Flat Ceramic Filters pores of 0.1 and 0.3 microns which effectively filter rust, particles, and impurities. Remove germs and bacteria
  • Stage 2: Ion Exchange Resin softens the water and removes toxins along with heavy metals.
  • Stage 3: Coconut Shell Activated Carbon terminates organic contaminants such as pesticides, chlorine, etc.
  • Stage 4: Far Infrared Ceramic Ball produces mild ionization which splits the water into two streams; acidic water and alkaline water. Increase the alkalinity of the water.
  • Stage 5: Copper Zinc Alloy Coating’s Oxidation/Reduction process takes place which removes and neutralizes chlorine, lead, mercury, and hydrogen sulfide.
  • Stage 6: Maifanite Purification Filter- further purifies water from toxins and heavy metals to ensure antibacterial function.
  • Stage 7: Magnetic device reconstructs structure on a molecular level into smaller clusters to improve absorption, and to boost energy.
  • Eco-friendly as it lessens the use of bottled water which results in wastage of plastic bottles and is a serious issue.
  • Ideal for home, office, or any cabin use as it does not require any electricity. It is portable, convenient and easy to use
  • Filter Lasts About 6 Months.
  • The holding capacity of the top tank of this ionizer is 2.1 gallons, and of the storage tank is 3.2 gallons.
  • Premium quality purified alkaline water.
  • Portable, convenient and easy to use

Final Verdict: Which is the Best Water Ionizer?

We at Home Ionizer always believe in delivering unbiased product reviews which ease the life of common people. After performing extensive research on various water ionizer features we recommend Aqua Ionizer Deluxe 9.0 because it has the most advanced features including 9 plates, touch control panel, and user-friendly design. Yes, you can enjoy all the amazing benefits of alkaline ionized water within a pocket-friendly price in 2021.

Frequently Asked Questions

Do I Need a Plumber to Install a Water Ionizer?

Well, it solely depends upon your DIY skills as everyone has a different scope of interest. Commonly people with little to no knowledge of technical skills like plumbing can easily install water ionizer machines at their home with the help of the manufacturer’s user installation guide. Still, if you are thinking of letting go of another task from your to-do list then you can hire someone from outside. Trust us it’s worth trying at least once.

Why Are Some Water Ionizers More Expensive Than Others?

Well, there is not a certain reason for inflation in rates of some available water ionizers in the market apart from more efficient performance, longer shelf life, and other handy features like touch user control panel.

Can I Use a Water Ionizer for My Pets?

Indeed, these alkaline water ionizers can actually help in the pet digestion process due to a more suitable pH level.

Do Different People Need to Drink Water at Different PH Levels?

Not really as people around the world drink water at an alkaline pH level of around 9. Medical science has shown proven results that acidity levels in our bodies can vary due to reasons like poor diet, stress, pollution, and an unhealthy lifestyle. You can use the alkaline for daily routine activities like cooking and drinking without any concern.

What is a Water Ionizer? 5 Best Water Ionizers In 2023
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What is a Water Ionizer? 5 Best Water Ionizers In 2023
Guide on how to get the best alkaline water ionizer machines for your home? What to look for when buying ionizer in 2023? How does it work?
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Home Ionizer
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  1. An excellent article to read. Indeed Water Ionizers are one of the most amazing devices to purchase for your home.

  2. I was wondering if I can attach this device along with a large water tank for fish farming? I would love to hear your thoughts.

  3. I was looking for a device that can help me look after my pets after the doctor suggested that my dog fall ill due to polluted water. Thanks for sharing.

  4. Hello Author,

    I would like to thank you for your effort in this wonderful piece of content.

    Just need to know is it suitable to use this device for pets?

  5. I was really stress due to my health issue earlier but this water ionizer helps me the fixed the biggest concern for me which was digestion. Thanks for your suggestion.

  6. I have bought the suggested water ionizer which is aqua 9.0 which works flawlessly for me. Thanks for your recommendation.

  7. It is save to make your pet drink water for this device? I read your article but I am a little more concerned about it. Looking forward to hearing from you.

  8. I was wondering the buy the water ionizer machine last year but didn’t buy due to certain reasons. But I must say you have written a masterpiece on water ionizer machines to buy in 2020. Looking forward to getting one in 2020.

  9. Polluted water is one the core reason why under developing countries people fell sick, This is a heck of useful devices for such people to get clean water to drink. Thanks a million for sharing with us.

  10. I was wondering do these water ionizer machines can be useful in rural areas? There are a couple of people suffering water-related diseases.

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