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AlkaViva Athena H2 Water Ionizer

$2,594.99
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Athena-H2

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Athena H2 Water Ionizer – Best Hydrogen-Rich Alkaline Water Machine for Home Use.

Experience the ultimate in home water ionization with the AlkaViva Athena H2 Water Ionizer. It produces hydrogen-rich, antioxidant-packed water with optimal pH levels for better hydration and health. Featuring advanced Hydrogen Infusion Technology, seven platinum-coated titanium plates, and the DARC continuous-cleaning system, it ensures clean, healthy water without manual maintenance. Combined with UltraWater filtration, the Athena H2 delivers the purest water possible, built to last a lifetime with a lifetime warranty.

Key Benefits

  • Maximum Hydrogen Antioxidants: Internal AC-to-DC switching boosts H₂ production at every pH level.
  • Durable & Leak-Resistant: Built for under-sink installation and long-lasting reliability.
  • Automatic DARC Cleaning: Keeps plates calcium-free for peak performance 24/7.
  • UltraWater Filtration: Removes up to 99.999% of contaminants, including fluoride.
  • Lifetime Warranty: Complete coverage for all parts and internal components.

SmartDesign Electrodes – Maximum Efficiency

SmartDesign electrodes are solid platinum-coated titanium solid plates optimized for maximum hydrogen production and ORP. Lower power density increases dissolved H₂, reduces plate stress, and enhances durability for consistent performance.

After extensive research, the H2 Water Ionizer engineers found that higher power density reduced the amount of H2 in the water, so to increase the amount of H2 dissolved in the water use a lower density of power. This is how SmartDesign originated.

In addition to better performance, running lower power puts less stress on the plates, which leads to increased durability over time.

Advanced Hard Water Protection

The Athena H2 resists hard water scaling, maintaining performance and keeping your warranty valid in all water conditions.

UltraWater Filtration – Purest Water Guaranteed

Patented UltraWater filtration removes nearly all contaminants, including micro-pollutants missed by reverse osmosis or distillation. Dual 0.1-micron filters with space-fiber technology ensure safe, healthy drinking water.

Feature Highlights – Why the Athena H2 Stands Out

Also see our Water Ionizer Comparisons Page.

Maximum Hydrogen Antioxidants

Advanced Hydrogen Infusion Technology ensures every glass is rich in molecular hydrogen (H₂), a powerful antioxidant for health and wellness.

Seven Platinum-Titanium Plates

SmartDesign electrodes optimize ORP and pH efficiency while extending the life of your ionizer.

DARC Continuous-Cleaning

Automatically cleans the plates 24/7, preventing calcium buildup and maintaining peak performance over time.

UltraWater Filtration

Removes up to 99.999% of contaminants, including fluoride, providing the purest, healthiest water possible.

Durable & Leak-Resistant

Built for under-sink installation and designed to last a lifetime, backed by a comprehensive warranty.

AutoAdjust Technology

Automatically optimizes power for your water source, ensuring consistent pH and antioxidant levels with every use.

Flow & Volume Control

Adjust water flow and volume easily to match your drinking, cooking, or appliance needs.

Smart Micom System

The onboard mini-computer continuously monitors and adjusts operations for maximum efficiency and performance.

Installation Options

Standard Faucet Diverter

Quickly connects to your existing sink faucet for fast setup.

Diverter for Pull-Out/Spray Faucets

Ideal for sinks with pull-out sprayer heads or limited faucet space.

Angle Stop Valve

Provides a clean under-sink installation with a direct plumbing connection.

Why Choose Athena H2?

The Athena H2 is widely considered the best home water ionizer for producing hydrogen-rich alkaline water.

  • Highest H₂ levels per pH unit
  • Best ORP performance in its class
  • Continuous cleaning and AutoAdjust technology for hassle-free operation
  • UltraWater filtration ensures pure, healthy water
  • Built to last with Lifetime Parts and 10-Year Labor Warranty coverage

State-of-the-Art Hydrogen Water Ionizer

The AlkaViva Athena H2 Water Ionizer represents the pinnacle of water purification and antioxidant delivery. Engineered with advanced Hydrogen Infusion Technology, it produces water rich in molecular hydrogen (H₂), renowned for its potent antioxidant properties. This state-of-the-art ionizer features seven high-grade, platinum-coated titanium plates and offers five alkaline settings, ensuring optimal pH and antioxidant levels tailored to your needs. Its innovative DARC (Double Automatic Reverse Cleaning) system guarantees continuous cleaning of the plates, maintaining peak performance without manual intervention. Coupled with UltraWater filtration, the Athena H2 ensures the cleanest, healthiest water possible. Built to last and backed by a lifetime warranty, it's the ideal choice for those seeking superior hydration and health benefits.

  • By internal switching from AC to DC the H2 water ionizer is a powerhouse for the production of H2 (antioxidants).
  • With the Athena H2 water ionizer you get the power of H2 antioxidants with every level of pH you select.
  • The Athena H2 ionizer is a very sturdy water ionizer. Super strong against leaks too.
  • The DARC (Double Automatic Reverse Cleaning) continuous-cleaning system keeps the plates in like-new condition for the life of the water ionizer.
  • H2 water ionizers are so long-lasting they are the only models I recommend for under-sink installation.
  • All AlkaViva alkaline water ionizers come with lifetime warranties.
  • The AlkaViva Athena water ionizers also use UltraWater filtration. There is no better filtration in the world than the UltraWater filters used in the AlkaViva Athena H2 water ionizer. The filters produce the cleanest water, compared with all other water filters.

The Athena H2 the best water ionizer I have found in many water ionizer comparisons. It gives the highest levels of H2 (molecular hydrogen) and ORP per unit of pH of any other water ionizer.

Advanced Protection Against Hard Water

Hard water can harm a water ionizer, and often your warranty doesn't cover it. But the Advanced design of the H2-Series water ionizers protects against hard water better than any other water ionizer. For hard water protection, the Athena H2 is in a class of its own.

Advanced UltraWater Filtration

UltraWater filtration is a great invention. No other filters can purify the water in such a healthy way.

Even reverse osmosis and distillation misses some contaminants, like Fluoride, which have a low atomic weight.

UltraWater filters lab tests prove they remove up to 99.999% of contaminants, regardless of atomic weight. Patented dual filters consisting of 0.1 micron filters combine with space-fiber technology to efficiently filter almost any tap water.

Summary of Distinctive Features of the AlkaViva Athena-H2 Water Ionizer

  • 5 Alkaline, 4 Acidic & 1 Purified (Filtered Only) Settings:  There are no chemicals used to make even the strongest levels of alkaline ionized water in the Athena H2 water ionizer. Note: Always start drinking on the lowest alkaline level and move up if and when ready.
  • Powerful Hydrogen Antioxidants Generator: The production of molecular hydrogen, or H2, requires advanced technology, which the H2 water ionizers have. The Athena H2 water ionizer uses advanced and patented Hydrogen Infusion Technology, which enables optimal levels of molecular hydrogen (H2 Antioxidants).
  • Best negative ORP: The molecular hydrogen or H2 powerhouse design contributes to the ORP of the Athena water ionizer. ORP is oxidation reduction potential. It's a very important feature that the ORP, per unit of pH, on all alkaline settings is exceptional!
  • Continuous-Cleaning: Fully automatic continuous-cleaning means that your H2 water ionizer automatically cleans all the time. It will maintain it's peak performance throughout the life of the water ionizer. 
    • The competitors have only intermittent, cleaning. This could allow for some calcium build-up on the plates because it's not continuous.
    • Calcium on the plates makes them less able to ionize at their maximum. It is a scientific principle that platinum catalyzes [speeds up] electrolysis. But, to do that the platinum must be in direct contact with the water. So, even the thinnest film of calcium on the plates can inhibit that water ionizer's potential to ionize fully and efficiently.
    • With the Athena H2 water ionizer the cleaning is automatic, in background, and continuous - 100% of the time. You never have to wait, and your H2 water ionizer always gives you the maximum amount of antioxidants in your water. 
  • AutoAdjust for optimum pH levels. All H2 Series water ionizers have the AutoAdjust feature. This allows the machine to adjust the power at optimum levels for your source water. You can set and forget your power settings with AutoAdjust.
  • Volume Control option on back of machine toward bottom/left.
  • High Quality, Patented, Ultra-Water Filtration. The Athena H2 Water Ionizer's filtration is going to give you pristine clean water!
  • Real-Time Flow Control: Get maximum flow-control with the new Athena H2 water ionizer.
  • SMPS power supply is the most up-to-date, latest version
  • Ongoing self-diagnosis and control with a Micom (mini-computer) on-board! The Micom [miniature computer] System controls every operation of the Jupiter Athena water ionizer to improve performance.

H2 WATER IONIZERS ARE STRONG ON THE INSIDE

With H2 water ionizers you don't have to worry about being told you can't install it under your sink if you ever want to. These are very strong water ionizers and can hold up to the internal pressure of undersink installation, or any other kind of pressurized installation, very well. The water cell and all internal parts are warranted for life.

ALKAVIVA WATER IONIZER IMPORTANT NOTES

  • The Athena H2 parts have very high quality, built to last a lifetime.
  • The lifetime warranty is a good one. It covers spontaneous malfunctions or defective parts, which are extremely rare.
  • The AlkaViva repair depot is in Reno, Nevada.
  • AlkaViva tests their water ionizers before shipping for quality control purposes. Plugs protect it from leaking during shipping.
  • H2 water ionizers include hoses, pH test kit, diverter for faucet connection and John Guest Tee for direct plumbing connection.

Why are H2 molecules so important?

The tiny size and solubility of H2 makes it the only free-radical neutralizer capable of passing through cell membranes. It even passes through the blood-brain barrier. Inside the cell, where free-radicals do the most damage, the power of molecular hydrogen becomes a literal life-saver. 

Read more about the benefits of H2 ionized water.

Testing the AlkaViva Athena H2 Water Ionizer (1 min. video)

Customers Rave About the Athena H2 Water Ionizer

See the Reviews Tab, above, for more great Athena H2 reviews.

“The Athena H2 water ionizer works great, was easy to install, and the water tastes amazing. We're using it to clean our fruits and veggies as well.”

– Natalia K.

“We all love our Athena H2 and have used it every day for 5 years! With our whole-house filter, it’s the foundation of our family’s healthy lifestyle.”

– Christopher P.

“I’ve had my Athena H2 for just over a week and already feel more clarity, vitality, and energy. I even swam 90 laps in under 50 minutes—at 71 years old!”

– Barry S.

“The Athena H2 was delivered quickly and packaged securely. Easy to set up and the water quality is excellent—thank you, Alkaline Water Plus!”

– Corinne H.

“As a long-time alkaline water drinker, this is the best upgrade I’ve made. The Athena H2 produces cleaner, smoother-tasting water and the hydrogen benefits are noticeable.”

– Jerry W.

“We purchased the Athena H2 for our son—our second unit! Cathleen’s expertise made it easy to choose the right ionizer. We only buy through Alkaline Water Plus.”

– Audrey S.

“Amazing water, easy installation, and exceptional customer support. Worth every penny—this machine changed how we hydrate and feel every day.”

– Kimberly M.

“We’ve enjoyed our Athena H2 for nearly a year. Setup was simple, and the build quality is top-notch. Highly recommend for anyone serious about healthy water.”

– Rodney T.

“I noticed improvements in digestion and sleep within days of using my Athena H2. Even my dogs have more energy since drinking the water!”

– Lisa S.

“This is my second machine after upgrading from 6 years ago. The Athena H2 delivers excellent results and Alkaline Water Plus provides top-notch information and service.”

– Clifton V.

UltraWater Filters

The AlkaViva UltraWater filters are among the most advanced in the world—designed to completely purify your water while protecting your ionizer from scale buildup. Each system includes two filters that work in tandem to remove up to 99.999% of contaminants. Buy Replacement Filter-Set for Athena H2 Water Ionizer.

Built-in anti-scale ports and a filter life indicator make maintenance easy and ensure your water always stays fresh and healthy.

UltraWater Filter

Filter Replacement Guide

Follow these simple steps for smooth, hassle-free filter changes:

  1. Turn off the water flow to your ionizer.
  2. Turn on the alkaline flow briefly to release internal pressure.
  3. Remove the old filters only after pressure has been released.
  4. Detach the small electronic connector before removing the filter, then reattach it to the new filter before inserting it.
  5. Apply a small amount of food-grade lubricant (like olive or coconut oil) to the o-rings to ensure a snug seal.
  6. If removal is tight, gently tilt and pull the filter while releasing upward pressure.

Tip: Always order your filters from Alkaline Water Plus to ensure you receive genuine UltraWater replacements made specifically for your model.

If you ever have questions or need assistance, contact us—our team is here to help you quickly and efficiently.

The Manufacturing Quality of the AlkaViva Athena H2 Water Ionizer

Top Certifications and Outstanding Companies: There aren't better water ionizer companies than these. Their certifications are numerous, including ISO 9001 and 14001, UL standard for Low voltage electrical, NRTL, CE and KFDA.

athena-h2-water-ionizer-certifications.jpg

SPECIFICATIONS

  • Voltage:  120V [60Hz]
  • Power:  Newest, most advanced form of SMPS
  • Watts: 235W
  • Works with up to 72 psi of water pressure.
  • Dimensions: 12.5” wide x 14.5” high x 5.5” deep
  • Weight:  13 lbs. 
  • Suitable Tap Water Temperature:  40 - 86F
  • Protection Mechanisms:  2 temperature sensors built-in and fuse to protect machine from overloads.
  • Electrolysis Method:  Continuous and Automatic 
  • Electrodes:  7 medical grade Platinum coated Titanium plates using the patented SmartDesign technique 
  • Flow-Rate:  1.5 liters/min. to 2.5 liters/min. 
  • Settings:  Alkaline Water (5 Levels), Purified Water, Acidic Water (2 Levels)
  • Cleaning:  Automatic and Continuous Cleaning 
  • Filter Replacement:  2 Filters offering 13 stages of filtration
  • Filter Life: 1,000 gallons
  • Voice Volume:  can be adjusted
  • Display:  LCD Touch Screen (Letters and Images)
  • ON/OFF Valve Method:  Real-time Flow Control Knob
  • Mineral Port:  in each filter. 

Athena H2 Water Ionizer Installation Video

Follow the link to watch a thorough demonstration of installing any of the H2 water ionizers. 

ALKAVIVA Athena H2 Water Ionizer Warranty

The parts within the Athena H2 water ionizer and all AlkaViva water ionizers are of fantastic quality. They can last a lifetime.

It's very rare that any of our water ionizers would have a defective part. But for your protection, all AlkaViva water ionizers have limited lifetime-parts/labor warranties.

  • We will register your water ionizer for its AlkaViva Lifetime Parts & 5-Year Labor Warranty for you.
  • Also, for no extra charge to you, we will increase the "5-Years" of Labor to 10-years. Just say "upgrade warranty to 10-years labor" in the comment section of the order form.

Note: A water ionizer is a life-long investment in your health.

Visit our Safe Shipping & Receiving of a Water Ionizer page.

All Water-Ionizer Customers Please Read:

If you have special water-source issue, please read the appropriate page(s) listed below for your convenience before you order. Or contact us for a free water quality consultation.

Packing Up the H2 Water Ionizer

See the bottom of the AlkaViva Category Page for instructions to follow if you ever need to ship an AlkaViva H2 series water ionizer.

PayPlan Options

See the Payplans Page for more information about these.