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Best Water Ionizers (Alkaline Water Machine) for 2021

Jennifer Hansen
Last Updated on
by Jennifer Hansen

The Best Water ionizers (also known as alkaline water machines) purify water, eliminating the hard minerals and unsafe chemicals that are not meant to be ingested, or may even be harmful in doing so.

Ionizers come in many shapes, forms, and varieties, and you may not even know how your ionizer could be improving your life via the quality of your drinking water.

It’s valuable to know why your ionizer (alkaline water machine) is so important, and which one can work the best for your household.

Water Ionizer Comparison
Tyent Water Ionizer
  • Display: Customized LCD
  • Dimensions (inches): 11.8 x 5.3 x 13.8
  • Weight (lbs): 11.023
Ion Health Water Ionizer
  • Display: Color LCD
  • Dimensions (inches): 15.2 x 11.2 x 5.3
  • Weight (lbs): 8.8
Kangen Water Ionizer
  • Display: Full-Color LCD
  • Dimensions (inches): 13.6 x 11 x 5.8
  • Weight (lbs): 11
  • Display: LED
  • Dimensions (inches): 14 x 5.4 x 14
  • Weight (lbs): 12.346

Best Water Ionizers (Alkaline Water Machine) Reviews

1. Tyent ACE-13 – Best Alkaline Water Machine

Tyent ACE 13 Water Ionizer

In our opinion, the best water ionizer is the Tyent ACE-13 machine. This ionizer brings forth some of the best tasting water we’ve ever tested with a sleek, stainless steel design for your high-end kitchen.

With eight new and exclusive features, the ACE-13 water ionizer has 13 platinum-coated titanium solid-mesh hybrid plates inside the electrolysis system that processes tap water. You have greater control over the pH level of your drinking water and can achieve an acidic or alkaline pH level depending on the health benefits you’re looking for in your alkaline water.

Some of the Best Features in the Industry

Every feature of the ACE-13 water ionizer is designed to provide you with healthy and better-tasting water. Ionized or alkaline water is antioxidant-rich, detoxifying, immune-boosting, and anti-aging. You get more energy and have better focus when you drink quality water. The ACE-13 water ionizer also incorporates electrolytes to maximize your workout potential with faster recovery times, improved performance, and increased hydration.

There is now a motion-activated flow sensor for hands-free ease. The autofill quantity selector will automatically stop the flow of water when your glass is full. The water by design feature lets you modify the pH level of the alkaline water to suit your needs. But one of the best new features is the 4-inch, full-color, LCD graphic interface that is easy to see and use.

Other high-quality upgraded features:

  • JOG Dial for an alternative programming option
  • Highest levels of negative ORP
  • Therapeutic levels of molecular hydrogen
  • Pre-fitted maximum amperage power
  • 360o rotating smart spout
  • Programmable auto-clean option
  • A front-load filter access panel
  • Real-time water flow rate

Top Quality

The ACE-13 water ionizer filtration system removes over 200 dangerous chemicals from tap water. The Turbo function rinses harmful pesticides and herbicides from fresh produce, reducing the amount of money wasted on that organic label.

Tyent has quality certifications to provide you the highest standard product, including ISO 9001, ISO 14001, ANSI, and CE. With a 100% full lifetime warranty, we believe that the ACE-13 is the best water ionization machine on the market to purchase.

2. ionHealth Premium Alkaline Water Ionizer

Ion Health Water Ionizer

The ionHealth water ionizer uses nine platinum-coated titanium plates and is designed to fit in any kitchen and with any quality of water supply. This Korean ionizer comes with a lifetime warranty and 280 watts of SMPS power. You can install the unit under the sink with the countertop touch panel. The colorful LCD display tells you what setting you’ve selected and when the filter needs to be changed.

On the display, you can choose from five languages, change the pH level from 2.7 to 11.5, adjust the volume, and more. It also comes free with the Smart Faucet, which allows you to control the alkalinity of the water at just the touch of a button. The automatic cleaning prevents scale buildup and unnecessary wait time. Plus, two filters remove over 99.9% of contaminants, like E Coli. and Salmonella.

If you’re looking for a new water ionizer, the ionHealth Premium Alkaline Water Ionizer is a great choice. This model is a bit pricey, but with the free Smart Faucet, lifetime warranty, and impressive water quality, it offers a lot of value for the price.

  • Industry best lifetime warranty
  • Automatic cleaning
  • Included Smart Faucet
  • Can be used with under sink installation kit
  • Mesh plates instead of solid material

3. Kangen Water Machine Ionizer

Kangen Water Ionizer

The low input, high output Kangen 8 is Enagic’s most popular and most potent antioxidant machine. This model has eight platinum-dipped titanium plates, is fully automatic, and simple to operate.

You can use the Kangen 8 for any municipally-supplied drinking water to produce five different alkaline water types for different uses – clean water, Kangen water, strong Kangen water, acidic (beauty) water, and strong acidic water.

This plug and play unit has interchangeable plugs for multi-voltage power supply capabilities and uses a one-way diverter to connect to your faucet. The large, full-color LCD touch screen panel also comes with eight language settings for the display and audio and on-screen e-cleaning instructions. There’s an automatic ten-second cleaning cycle and an automatic new filter sensor.

With proper care, Kangen water machines can last for over 20 years. Many people consider Kangen water machines to be the best in the industry. Enagic holds four different water certifications by the Water Quality Association.

Kangen water machines are easy to set up and come with some great features. The price is relatively high, but they’re aesthetically pleasing and provide impressive water quality. Enagic has undoubtedly built a name for itself among alkaline water drinkers, and for a good reason. If you’re looking for a water ionizer, Kangen water is a good choice.

  • Water stays fresh tasting and holds temperature longer
  • Easy to clean and maintain
  • Easy to open with one-touch, one-hand flip lid
  • Features a lock to keep the lid securely closed
  • Leak-proof
  • Carry loop is comfortable
  • Opening is too small for standard ice cubes
  • Bottle is heavy compared to metal or plastic

4. Aqua Ionizer Deluxe 9.5 – Best Budget Choice

Aqua Ionizer 9.5

The Aqua Ionizer Deluxe 9.5 features incredible antioxidant boost technology, with a dedicated “high antioxidant” button and is chemical-free. You can choose from over twelve different pH levels in a range from 3.0 to 11.5. This ionizer’s nine durable platinum-coated titanium plates cover a 163 square inch surface area and are energy-efficient and multilayered.

There’s a three-stage auto-cleaning cycle at shutoff, and the machine only requires manual cleaning with a cleaning agent once a year. The diverter hardware set, flexible metal spout, water hosing, wall mounting equipment, and owner’s manual are all included for easy installation. The unit is designed to be easily installed on top of the counter or work with the under-counter kit. Installation usually takes only a few minutes.

The company also boasts of a proprietary antioxidant boost technology claiming to increase the antioxidants in your water, specifically molecular hydrogen reaching over 1.5ppm. The Aqua Ionizer Deluxe 9.5 is made with FDA approved plastics and comes with three bonus activated carbon filters,  two bonus ORP antioxidant-retaining water bottles, descaling solution, and pH tester/reagent with a color chart

  • Includes three bonus activated carbon filters
  • Two bonus ORP antioxidant-retaining water bottles
  • ETL certified safe
  • Lifetime warranty
  • Transformer power instead of SMPS

5. Bawell Platinum Alkaline Water Ionizer Machine


If you’re looking for a pretty heavy duty and useful ionizer for producing alkaline water, the Bawell platinum is it. Though it is quite pricey it’s one of the best ionizers you can buy for your home.

So, what makes this product so great?

Well, asides from the many 5-stars feedback we got when researching this product, it also has a lifetime warranty. So, any problems guarantee that you will receive a new ionizer (alkaline water machine) without the usual hassle of replacement.

The Bawell Platinum’s sleek appearance should also be taken note of. You could set it directly next to your faucet, and it wouldn’t be an eyesore, but a decorative and functional addition to your kitchen or any other place you see fit. The ionizer itself is versatile as to where you install it in the home.

Be aware, however, that this ionizer cannot be placed below the sink.

It is equipped with two separate filters which will not need to be changed until 5,000 liters of alkaline water have already been produced. This amounts to about one year of water usage. The ionizer will announce via voice notification when the filters are coming close to depletion, so you won’t have to design your own system to measure usage. The ionizer itself will keep a tally of the usage, which will be displayed and easy to keep track of.

This ionizer can also be installed without an expert, making it a pretty even deal without the additional expense of installation. In fact, a DVD to help you install is included when you purchase this ionizer (alkaline water machine).

Just be careful to install it as carefully as possible, you want it to work as well as it’s supposed to! You can always opt for an expert installation to ensure that the installation goes seamlessly.

As for the actual functioning of the Bawell Platinum Ionizer, it can produce filtered ionized alkaline water for drinking and acidic water meant for cleaning, making it multi-functional and extremely efficient for use in the household.

This ionizer promises an unlimited supply of antioxidant-rich alkaline water for the entire family, including your pets.

6. Life MXL-9 Counter Top Ionizer


The Life Ionizer MXL-9 Countertop Alkaline Water Ionizer is similar to the Bawell Platinum model, but with even more upgrades, and somewhat of a higher price tag. It’s also a bit difficult to get at the moment as it’s so popular and usable.

The company that produces it, Life Ionizer, may be making advancements to this model in the coming months, so it may be even more difficult to get if you don’t act fast.

This model hopes to gain awareness of how important leading a healthy lifestyle and drinking safe and purified alkaline water is to living a long life devoid of an array of health issues. From what we know about water’s lasting effects on the human body, the more hydrated we are, the better we can excel in everyday tasks, as well as maintain an overall cleaner bill of health.

Drinking a balanced amount of alkaline water can help your immune system to protect itself.

As far as the Life Ionizer’s technical value, its advanced technology gives it a multitude of functions. Its XL Matrix Grid Plates allow for more electrons to be filtered into the purified alkaline water. This helps to increase the molecular hydrogen levels, also.

Another significant benefit in the Life Ionizer MXL-9’s favor is that installation can be done entirely on your own. And if you get stuck at any point, there are installation videos set up exactly for this purpose, and technicians standing by to offer assistance even if just by phone.

If that isn’t a selling point, then this model also comes with a lifetime warranty, which will give you purified and best alkaline water forever. Now that’s a great deal.

The company who produces this ionizer, Life Ionizer, aims to produce products that are sustainable and eco-friendly, which is why their products are as energy-efficient as possible. They are also focused on technological advancement with all their products, which means that they continue to produce systems that are ahead of the rest.

If you want to purchase products from a company that is committed to an environmental means of production, the Life Ionizer may be your best bet.

7. Tyent UCE-11 Under Counter Ionizer

One of the most technologically advanced on the market, the Tyent UCE-11 is one of the nicest looking and most expensive ionizers (alkaline water machine) of its kind. With an included touch screen that is a part of the actual filtration system’s functioning and surveillance, this ionizer is all about the individual alkaline water needs of a household.

The stainless steel hardware also makes it a favorite aesthetically. Not only that, but this ionizer also includes multi-lingual voice activation technology.

This ionizer is meant for the high end. Therefore, it would be great for use in an office, business, or restaurant, and would be an investment that would keep on giving. It also includes a lifetime warranty. The warranty includes both parts and labor.

A hint at why this ionizer is both so popular and so advanced: the technology includes 11 platinum plates and 10 amps of power, its touch screen is modeled after one of the leading smartphones, and it’s been awarded “Best Water Ionizer” from 2012-2017.

All in all, the Tyent brand and products is a fantastic choice for alkaline water that you can’t miss.

8. All-Natural Alkaline Antioxidant Water Ionizer from CosanUSA


Similar in look to a Keurig, this ionizer is very portable, black and modern looking, and provides the best alkaline water for the whole family. This model also boasts superior filtration and high hydrogen levels. It’s also sold extremely well since it’s release and may be re-released with even more new features in the future.

CosanUSA, like Life Ionizer, is also focused on creating products that are sustainably made and prevent unnecessary waste in energy or plastics. This product promises zero electricity use.

Not only that, but this ionizer is committed to producing alkaline water that is very high in antioxidants, which carry many health benefits in regular consumption.

There is a relatively easy installation that comes with this model, and an option to hook it up to your refrigerator as well. It also comes with a converter to place it under the sink. Your kitchen can then be extra equipped with purified alkaline water if you wish!

One of the coolest and handiest features this ionizer includes is the option to simply wave your hand in front of it to turn it on and off. This prevents the spread of germs, not to mention is super easy.

If there are any problems with the ionizer’s functioning, or any filter is low, the technology will make sure to indicate that there is a problem with the system. That way, it won’t be too late when you realize that your filter needs changing or your ionizer needs repair.

What is an Alkaline Water Machine?

An alkaline water machine is a device that uses electrolysis to adjust the pH in drinking water. This device takes incoming water and splits it into alkaline and acidic components, and it’s the alkaline segment that leaves the machine for drinking.

Many proponents of alkaline water insist it’s a necessity for alkaline diets and other alternative health practices and some individuals claim that there are a variety of health benefits that result from consuming primarily alkaline water.

The best water ionizer typically uses some combination of metal plates, filters, and electrical power to operate, and both acidic and alkaline water have their own mix of antioxidants and smaller-sized water molecules as a result of the process.

You can find a wide variety of alkaline water machines online that range in size. The simplest and smallest version comes as a water pitcher with a specialized filter, while more complex devices can filter the water of entire homes.

Most alkaline water machines sit on your table or countertop and have a relatively small footprint. Some of these units aren’t compatible with well water, but most of them connect directly to your water faucet, so you can quickly get either hot or cold water.

Once the alkaline water is separated and used as drinking water, the acidic water is helpful for your hair, skin, and other beauty applications. Users can set their preferred pH on their alkaline water machine, and some of them feature additional filters to remove other impurities such as fluoride.

How Do Water Ionizers Work?

Using a water ionizer is a relatively straightforward process and starts by setting up your machine on a level surface near a water source such as your kitchen or bathroom faucet. If your water ionizer is a larger unit designed to provide water to an entire home, you may need professional installation.

Most water ionizers can connect directly to your water faucet; however, some individuals choose to take the extra steps to link them directly to their plumbing, either under the counter or where water enters their home.

Water enters the ionizing unit, where it moves across charged plates divided by a specialized membrane that is Ion-Permeable. This membrane only allows charged atoms and other molecules to pass through it but keeps out neutral atoms and molecules.

Generally, water molecules have a neutral charge, so they are unable to pass through the Ion-Permeable membrane, but alkaline mineral ions and carbonate ions can pass through thanks to their positive charges.

While alkaline ions have a positive charge, acidic ions have a negative charge, allowing the ionizer machine to accurately separate the ions that make up your water into two reservoirs. The ionization process is very swift, and your water should be ready to exit the machine in seconds via two different streams coming out of the device.

One stream is alkaline mineral water, and the other is a weak solution of acidic water called carbonic acid resulting from dissolving CO2 in water.

The alkaline mineral water contains both magnesium and calcium ions that are unstable, and as they react with the surrounding water, they release a bit of hydrogen. This reaction is why alkaline water from your at-home water ionizer is particularly rich in hydrogen.

Alkaline Ionized Water

Benefits of Drinking Ionized Water

Proponents of alkaline water state there are several benefits to drinking ionized water, including several health-related benefits and improved overall refreshment and taste. Not all of these claims have scientific backing; however, there are a few studies that have found alkaline water useful in particular situations, such as treating acid reflux.

Other studies have found some benefits in whole blood viscosity when compared to tap water consumption after a workout which can impact the delivery of oxygen in the body. Much more research is needed to uncover further benefits of alkaline water and the extent of its impact on the human body in different situations.

Other proposed health benefits include:

  • Immune support
  • Weight loss advantages
  • Anti-aging or slowing of the aging process
  • Cancer resistance or starvation of cancer cells

Proponents of alkaline water also believe that this substance provides colon-cleansing benefits and works better than tap water to hydrate the skin and body as a whole. It’s also possible that alkaline water has some mild detoxifying powers as it contains a different mix of antioxidants than regular tap water.

Other touted benefits include higher energy levels, better digestion, and an overall reduction of bone loss when alkaline water gets consumed consistently long term. Some individuals also claim that alkaline water has the power to improve their metabolism and can reduce the overall level of acid in your bloodstream.

Difference Between Ionized vs. Regular Water

The water you get from your water ionizer differs from tap water in a few key ways. First, it has an alkaline pH which can combat acid and somewhat neutralize acids present in special situations. Alkaline water can also help reduce oxidation, widely thought to be harmful in many applications, and it contains an assortment of valuable antioxidants.

Alkaline water also has a distinctive taste when compared to tap water, and individuals generally describe it as sweeter in flavor and generally more refreshing than regular tap water. In tap water, the acidic components naturally balance out the alkaline minerals so that the substance is neutral, and this can impact how refreshing it is and the overall flavor to some extent.

The best water ionizers may also include filters that remove other impurities from tap water before the ionization process, and this can result in water that has an even more distinct flavor compared to the tap water that enters the machine.


With so many ionizers and water alkaline machines on the market, it can be tough deciding on the one that’s best for you and your family for producing the best alkaline water. We are confident in the six listed above as being the best of the best available for purchase right now and that you can’t go wrong.

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About Jennifer Hansen
Jennifer Hansen
Jennifer is a clean water enthusiast and the lead editor of Water Filter Spot and created this website several years ago to share information that she's been researching in this industry for over 20 years.Jennifer studied environmental resource science in college and studied Western US water issues, including water policy, water rights, water pollution and environmental concerns.
Jennifer Hansen
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