Best Water Ionizer Reviews + Buying Guide

Nowadays, alkaline water is getting more and more popular thanks to researchers discovering numerous benefits related to skin, bones, digestive tract, and many other body systems – all of which can be attributed to ionized water.

So if you’re thinking about investing in a water ionizer to boost the quality of your and your family’s life, then you’ve come to the right place!

Today, we’ll be reviewing the 5 best water ionizers available on the market, and presenting you with a detailed buying guide to help you pick the perfect unit for your needs and budget.

Top 5 Water Ionizer Picks

Air Water Life Aqua-Ionizer Pro Deluxe 9.0 Alkaline Water Ionizer Machine

Aqua Ionizer Deluxe 9.0 Aqua-Ionizer Pro Alkaline Water Ionizer Machine
  • HAPPY, HEALTHY & HYDRATED: Alkaline Water may help detoxify the body, increase energy & hydration
  • MORE THAN DRINKING WATER: 7 water settings allow you to adjust the alkalinity & add antioxidants
  • MADE IN KOREA: Advanced filtration technology purifies & ionizes over 4000 liters
  • ENVIRONMENTALLY FRIENDLY: Ionizer reduces waste from plastic water bottles
  • -110 VOLTS Only - Undersink kit available- Antioxidant potential -860 ORP

Last update on 2024-07-12 / Affiliate links / Images from Amazon Product Advertising API

Air Life Water is an established company that’s known for manufacturing reliable and high-quality water ionizers such as the Aqua-Ionizer Pro Deluxe 9.0 – one of the top-selling models in its category due to its efficiency and flexibility of use.

This alkaline water ionizer is equipped with 9 platinum and titanium plates, which makes it one of the most powerful machines out there. You can also get an idea of its superior performance thanks to the impressive pH and ORP range.

The Aqua-Ionizer Pro Deluxe 9.0 has a pH level ranging from 3 to 11.5, with the ORP value going as low as -860. It features a simple control panel with responsive touch buttons so you can easily adjust the machine to your preferred settings.

It has 4 options for alkaline water (initial drinking, daily drinking, cooking, and brewing coffee/tea), 1 for purified water, and 2 for acidic water (cosmetic and household cleaning). There’s also an LCD screen that displays the current status of your water.

The built-in carbon filters produce clean water with an improved taste and free of most major contaminants such as chlorine. These filters are capable of handling about 4,000 liters (1,056 gallons) of water before you’ll need to replace them. This capacity can last you for approximately 1 year, but it still depends on your consumption.

Installing the Aqua-Ionizer Pro Deluxe 9.0 is no hassle at all, you can even set it either on the countertop or under the sink. But you’ll need to buy extra parts if you want to go for the under-sink placement.

This unit is a bit on the bulky size though, which can be problematic if you’re short on space. It’s also demanding when it comes to energy consumption.


  • Clearly labeled settings
  • Has 9 plates
  • Good pH range
  • Optimal ORP
  • Built-in carbon filters
  • Lifetime warranty


  • A bit bulky
  • Requires extra parts for under-sink installation

Bawell Platinum Alkaline Water Ionizer Machine

Platinum Alkaline Water Ionizer Machine
  • Bawell Water Ionizer Filter Systems Make Alkaline Ionized Water Benefits for drinking and Acidic Ionized Water
  • Alkaline Water Ionizer Filter Systems from Bawell feature the newest technology such as 2 filter filtration & dynamic ph and orp readings in addition to SMPS power systems. This Alkaline Water Machine is only for the Countertop, it connects to the faucet or water line below the sink.
  • Make alkaline and acidic water with PH Range 3.0 to 12.0 ORP Range +600 to -800 The Internal 2 Stage Water Filter System gives you cleaner more purified drinking water. Change the 2 filters every 5000 liters on average.
  • Displays PH & ORP , Filter 1 Lifespan & Filter 2 Lifespan & Alkaline Water or Acidic Water Electrolysis Settings. 110 Volts Only made for the United States and Canada only, does not work in Europe on 220 Volts.
  • This product is intended for use with potable municipal city tap water. Do not use this product with water of unknown quality or water which is microbiologically unsafe without adequate disinfection before or after the system. This product does not disinfect or sanitize your source water.

Last update on 2024-07-12 / Affiliate links / Images from Amazon Product Advertising API

Looking at the Bawell Platinum Alkaline Water Ionizer Machine, it’s quite obvious how elegant the machine is with its modern stainless steel design. But having good looks isn’t the only impressive aspect of this ionizer, it also delivers a remarkable performance that focuses on quality, practicality, and ease of use.

This unit features a fast flow rate, producing 1 gallon of water every 30 seconds. It’s equipped with 6 premium plates (2 sets, 3 each), providing both alkaline and acidic water with a wide pH range going from 2 up to 12. The ORP range reaches as low as -800, meaning that the machine is rather capable of giving you antioxidant water to help your body fight harmful free radicals.

Moreover, the Bawell Platinum Alkaline Water Ionizer Machine houses not only 1, but 2 internal filters as well as an option for installing 3 additional external filters to boost the filtration process. So, you’ll be receiving ionized water that’s also been purified from harmful contaminants.

Don’t worry though, all the extra filtration doesn’t make the machine too bulky. It measures at 11.8 × 6.2 × 15.2 inches and it comes with keyhole slots on the back to allow for wall mounting. The filters can handle approximately 5,000 liters (1,320 gallons) of water before they require replacement, which is equivalent to a 1-year lifespan.

One issue you may experience with this ionizer is the small text of the buttons and display screen, which makes them somewhat hard to read. The instructions for installation aren’t all that clear either.

The Bawell Platinum Alkaline Water Ionizer Machine is on the more pricey side, but remarkable quality can be well worth the money. The unit is constructed from BPA-free food-grade plastic to ensure safety, and it’s backed up by a lifetime warranty to protect your investment.


  • Wide pH range
  • Double filtration system
  • Optional external filters
  • Sleek, modern design
  • High-quality construction
  • Lifetime warranty


  • Labels can be hard to read
  • On the expensive side

Webetop Water Ionizer and Purifier Machine

Water Ionizer Alkaline Machines and Water Purifier PH 3.5-10.5 Alkaline Acid Water Machine/7 Water Settings/up to -500mV ORP for Better Life
  • Hi-Tech Water Machine - Efficiently clean the bad taste, odors, organic matter, residual chorine and other harmful substances in the water. Perform high efficiency and long usage life of adsorption. it can purifies over 1,585 gal (6000L).
  • 7 Healthy Water Options - No matter the pH of your source water, the Webetop water ionizer will produce the highest quality alkaline and acidic water possible.
  • Auto Self-cleaning - The machine cleans itself by reversing polarity after each use and auto-plate washing itself every 7.9 gal. You also can reset it according to the water quality.
  • Qaulity of Craftmanship - 5pcs large size Titanium with Platinum coating plates, applied with Japan imported IONIC MEMBRANE, provding higher efficiency electrolysis and longer working time.
  • Additional Features - 110V power universal/ produce water pH 3.5 to 10.5/ +600 to -500mV ORP level/ Make the water TDS from 50 to 1000PPM/ Super large 3.8 inch colorcul LCD screen display./Pass WQA Certification & NSF Certification in American./ 100% offer refund if you are not satisfied with the product.

Last update on 2024-07-12 / Affiliate links / Images from Amazon Product Advertising API

If you’re looking to improve the quality of water around your household but you can’t afford to pay $1000+ for a water ionizer, then you’d be happy to know that the Webetop Water Ionizer and Purifier Machine has got you covered!

This capable machine is an excellent choice for shoppers on a budget, not even breaking the $500 mark. Don’t let the price fool you though, this unit still delivers reliable results along with handy features to make your life healthier.

It’s equipped with 5 large plates made of titanium with platinum coating and Japanese IONIC membrane, providing great electrolysis efficiency and longer service time.

The machine offers a decent pH range, from 3.5 to 10.5. With both options of alkaline and acidic water, you get to choose from 7 different settings: 4 for alkaline water (initial drinking, cooking/drinking, daily drinking, food disinfection/dishes cleaning), 1 for unionized purified water, and 2 for acidic water (facial/skin cleaning and sterilization/disinfection).

The ORP value can reach as low as -500, which isn’t the best on the market, but wonderful given the price. The unit also comes with a built-in active carbon filter that works to remove tastes, odors, organic compounds, and chlorine from your water. The lifespan of this filter is quite impressive, handling up to 6,000 liters (1,585 gallons) of water before a replacement is due.

The Webetop Water Ionizer and Purifier Machine includes an auto self-cleaning feature where the unit cleans itself by reversing polarity and washes the plates per 7.9 gallons. The unit also comes with an LCD screen that’s 3.8 inches wide to clearly display your water status.


  • 7 water options
  • Self-cleaning function
  • High-capacity built-in filter
  • 100% refund guarantee
  • Very affordable


  • Has 5 plates only
  • Not the ideal ORP range

Air Water Life Aqua Ionizer Pro Deluxe 7.5 Water Ionizer Machine

Aqua Ionizer Deluxe 7.5 Alkaline Water Ionizer
  • -820 OXIDATION REDUCTION POTENTIAL | Reduce oxidation in the body and slow the aging effect with antioxidant-rich alkalized water featuring a negative ORP.
  • MICRO-CLUSTERED ALKALIZED WATER | Smaller water clusters allow your body to absorb water more efficiently which increases overall hydration.
  • 7 TITANIUM COATED PLATINUM PLATES | Aqua Ionizer Pro water ionizers use a proprietary process of dipping the plates, guaranteeing a thickness of 1.2-2 microns. This process prevents plate corrosion and build-up, ensuring your water is safe and contaminant-free.
  • ACTIVATED CARBON FILTER | Remove chlorine and odors while filtering dissolved solids from your source water. Cleans and treats 4,000 liters. Not compatible with well water.
  • 7 HEALTHY WATER OPTIONS | Featuring 4 alkaline ionized continuously variable, 1 non-ionized purified, and 2 ionized acidic presets. The variable 4.0 to 11.0 pH range allows you to use the water for cooking, cleaning, cosmetic use, and more!

Last update on 2024-07-12 / Affiliate links / Images from Amazon Product Advertising API

The Aqua Life Ionizer Pro Deluxe 7.5 from Air Water Life is another one of the company’s reliable machines that prove to be a valuable addition to your home.

The unit is equipped with 7 titanium/platinum plates for efficient electrolysis and extended service. It produces water at pH levels ranging from 2.5 to 11.0, so you can make use of both alkaline and acidic water. This water ionizer gives you full control over the type of water, allowing you to swiftly adjust its alkalinity.

The Aqua Life Ionizer Pro Deluxe 7.5 offers 7 healthy water settings to cater to all your household needs. You get to easily select your desired option via touch buttons. There are 4 settings for alkaline water (initial drinking, daily drinking, cooking, and brewing tea/coffee), 1 for only purified water, as well as 2 for acidic water (cosmetic and household cleaning).

The machine delivers ORP as low as -800, providing all the benefits of antioxidant alkaline water. It also includes advanced filtration technology using active carbon filters to clean and treat up to 4,000 liters (1,056 gallons), after which you’ll need to install new filters.

The Aqua Life Ionizer Pro Deluxe 7.5 uses plastics approved by the FDA as food safe, is ELT listed, is RoHS certified, and passed the ISO 9000:9001 factory testing.


  • Easy to set up
  • Clear controls
  • Various water settings
  • Outstanding value for money
  • Great customer service


  • Requires additional extension to filter fluoride
  • Not the most attractive design

Air Water Life Aqua Ionizer Pro Deluxe 9.5 Anti-Oxidant Boost Water Ionizer

Aqua Ionizer Deluxe 9.5 Anti-Oxidant Boost Water Ionizer |Produces pH 3.0-11.5 Alkaline Water Filtration System| Up to -880mV ORP | 4000 Liters Per Filter | 7 Water Settings
  • ANTIOXIDANT BOOST TECHNOLOGY | Antioxidants help increase energy, eliminate free radicals, and reduce inflammation which helps the body repair itself.
  • MICRO-CLUSTERED ALKALINE WATER | Smaller water clusters allow your body to absorb the water faster and more efficiently, eliminating the full feeling from drinking water.
  • SELF CLEANING | The unit cleans itself by reversing the polarity after each use and auto-plate washing around every 10 gallons.
  • FILTER | Activated Carbon filter removes chlorine, odor, and filters dissolved solids from source water. Cleans and treats 4,000 liters each. Includes Mineral Filter for reverse osmosis and well water.
  • 7 HEALTHY WATER OPTIONS | 4 alkaline ionized continuously variable; 1 non-ionized purified; 2 ionized acidic presets.

Last update on 2024-07-12 / Affiliate links / Images from Amazon Product Advertising API

Last but not least, the Air Water Life Aqua Ionizer Pro Deluxe 9.5 is the company’s latest and most superior creation aiming to give you the best quality when it comes to performance, practicality, and design.

Unlike all the previous models, the Aqua Ionizer Pro Deluxe 9.5 has a unique, all-black finish for a sleeker, more attractive look. The control panel is still as simple as ever to figure out, with a matching black theme to make for an aesthetically pleasing unit.

The Aqua Ionizer Pro Deluxe 9.5 features 9 titanium blades dipped in platinum for maximum electrolytic efficiency. The machine produces water with pH levels ranging from 3.0 up to 11.5.

It includes the same 7 healthy water options found in the previous versions, where you get to choose from 4 options for alkaline water, 1 for purified water, and 2 for acidic water.

The antioxidant property of the produced water is where the Aqua Ionizer Pro Deluxe 9.5 really shines compared to all the previous models. With an ORP value going as low as -880, this water ionizer uses proprietary antioxidant boost technology to significantly pump up the number of antioxidants in your water for maximum reduction of free radicals.

The Aqua Ionizer Pro Deluxe 9.5 also features a self-cleaning function, a backlit LCD display, and built-in active carbon filters with a 4,000 liter (1,056 gallons) service capacity. The unit takes about 10 minutes to install, and it’s backed up by a lifetime warranty.


  • Remarkable antioxidant properties of water
  • Easy to read backlit LCD screen
  • Premium quality construction
  • Sleek design
  • Lifetime warranty


  • Expensive

What is Ionized Water?

Before we dive into our buying considerations, it’s probably best if we first explain what ionized water means. Basically, ionized water is water that has passed through an ionizer machine.

A water ionizer contains plates made of platinum and titanium. These plates serve to exchange some of the titanium and platinum ions with the water. This process shifts the PH level of the water to be more alkaline, and also, the water is purified.

Consequently, we can conclude that ionized water can also be called artificially alkalized water. You can also refer to ionized water as electrolyzed reduced water because of its role in decreasing the harmful effects of oxidative stress on the human body. (More on the benefits of alkaline water soon!)

So what is the difference between alkaline water and normal water?

Now, you may be wondering: so, what makes alkaline water any different from regular water that you drink every day? Well, it’s all about the pH level of the water.

You see, the pH level of a substance refers to its degree of acidity or alkalinity. The pH scale goes from 0 to 14, where pH 0 is the highest acidity and pH 14 is the highest alkalinity. Substances with a pH level equal to 7.0 are said to be neutral.

This means that if a substance has a pH below 7.0 down to 0, it’s classified as acidic. For example, vinegar has pH 3 while the pH of lemon juice is around 2.

On the other hand, substances having a pH of more than 7.0 up to 14 are classified as alkaline. For example, the pH of baking soda is just over 8 and the pH of ammonia is about 11.

On the pH scale, normal tap water has a neutral pH of approximately 7. This can change due to chemicals or gases to shift the pH of the water to be more acidic (like rainwater) or alkaline (like chemically treated municipal water or hard water).

Typically, alkaline water has a distinct sweeter taste than regular tap water due to the difference in pH level, which also relates to varying levels of minerals such as calcium, potassium, sodium, and magnesium.

Moreover, to be considered alkaline, water must have a negative ORP (oxidation-reduction potential). This happens when the water has a lot of extra electrons that it can donate to electric-thieving active oxygen atoms. In this case, alkaline water can also be referred to as ‘Live Water’.

In standard drinking water, there are no extra electrons, and so, the water tends to have a positive ORP.

How do Water Ionizers Work?

Now that you know what alkaline ionized water is and how it differs from regular drinking water, it only makes sense that you understand more about the actual operation of a water ionizer.

Let’s start by saying that it may seem complicated at first, but it really isn’t all that difficult. So here’s what happens:

The water ionizer is connected to the kitchen water supply so that any time you want to drink, cook, or clean, you’ll get ionized water. Standard tap water goes inside the machine and leaves as alkaline ionized water.

The machine doesn’t add anything to your water, however, it does convert the bicarbonates in the tap water into hydrates, which are more alkaline materials.

How? Well, Tap water contains magnesium and calcium bicarbonates. The water ionizer separates the magnesium and calcium from the bicarbonate using platinum and titanium plates (electromagnetically-charged). The ionizer then produces two separate streams of water, one is alkaline and the other is acidic.

What are the Benefits of Alkaline Water?

According to The National Academies of Science, Engineering, and Medicine, women need to drink about 2.7 liters (91 ounces) of water every day to be adequately hydrated, while men should drink around 3.7 liters (125 ounces).

With such amounts of daily intake, did you ever stop to think about how the components of water can affect your well-being?

I mean, water already plays a critical role in every cell, tissue, and organ in your body, but just what kind of benefits does alkaline water offer when it comes to your overall health?

The following are some benefits that may be attributed to alkaline ionized water:

  • Support bone health – some research has been done to discover the effect of alkaline water on bone health. A 2009 study published in Bone found that alkaline water can lower bone resorption.

Bone resorption is the breakdown of bone cells to form new ones. Less bone resorption means more density, stronger bones, and a lower risk of osteoporosis.

  • Help with acid reflux – many people believe that drinking alkaline can help reduce acid reflux. Researchers are open to the possibility of drinking alkaline water as a supplement to other treatments of the reflux disease.


  • Detoxify the body – it also appears that alkaline water can help detoxify your body by flushing built-up toxins outside your systems. It may also be able to boost your energy levels and provide your body with useful minerals.


  • Replenish electrolyte – many people, especially those who regularly work out, swear by the ability of alkaline water to replenish electrolyte in the body, especially after intense workouts and physical labor.


  • Decrease blood pressure, blood sugar, and blood lipids – the effects of drinking alkaline on blood parameters were studied by a group of scientists in Shanghai.

They found the levels of blood pressure, blood sugar, and blood lipids had dropped significantly after 3 to 6 months of drinking alkaline ionized water. This suggests the positive effects of alkaline water on reducing the chances of diabetes and high blood pressure.

How to Choose the Best Water Ionizer?

When shopping for the best water ionizer, there are several factors that you should consider first before making a purchase.

These machines are quite sophisticated and complex, so they come with various features that aren’t necessarily present in all models. Here are the most important ones that you should definitely look for in your water ionizer:

pH Range

The main purpose of people investing in a water ionizer is to get ionized aka alkaline water. Whether or not the machine can efficiently do this depends on its capacity of changing the pH level of the water.

Water ionizer machines aren’t created equal in this aspect. Some models offer remarkably wider pH ranges than others, which affects the flexibility you get to work with.

It’s quite handy to have a machine that provides a decent pH range so you can take advantage of each band in certain use.

For example, acidic water with a lower pH is better suited for cleaning and disinfecting tasks. While more alkaline water is what’s considered safe and healthy for humans to drink and cook with. It’s up to you to decide if you need all the options.

ORP Range

As we mentioned above, ORP stands for oxidation-reduction potential, which indicates the capability of the water ionizer machine when it comes to decreasing the harmful effects of oxidation inside your body.

In theory, lower ORP values correspond to healthier water for you to drink. This means that a water ionizer machine with a lower ORP value will offer a higher capability.

Number of Plates

The plates in a water ionizer are the site of water conversion from acidic to alkaline. So you can conclude how crucial they are to the entire process.

If one machine has more plates than another, this means it’ll be able to turn over a greater quantity of water with a larger pH range and a better ORP value. In other words, more plates translate into more power.

However, more plates also demand more money and more energy. So not only will the initial price of the unit be higher, but it’ll also cost you extra in the long run.

Integrated Water Filter

Finally, a built-in water filter can really come in handy when you’re dealing with a water ionizer. This is because you’ll get alkaline water that’s also been purified, adding to its safety and benefits.

If you live somewhere with a well water supply, you may need to consider a unit with a more powerful filter to be able to handle the water pressure.

Keep in mind, however, that filters do require periodic replacement and maintenance, which adds up more costs over time.

Wrap Up

Choosing the best water ionizer can surely get confusing, especially with all the complicated specs and fancy features flying around. However, we’re confident that once you go through our buying guide, you’ll be able to find the perfect water ionizer for your needs from our top 5 list.

That being said, if you’re in the market for a reliable water ionizer that produces water at a wide pH range and an optimal ORP, then the Air Water Life Aqua-Ionizer Pro Deluxe 9.0 Alkaline Water Ionizer Machine should be right up your alley.

But if you’re on a budget and looking for an ionizer to provide all the necessary benefits without breaking the bank, then check out the Webetop Water Ionizer and Purifier Machine for a true bargain.

Photo by blondinrikard

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