The world's first portable hydrogen inhaler

Innovative technology from Japan
Daily Molecular Hydrogen Inhalations:
- improve the function of the heart, blood vessels and brain
- normalize the nervous system
- natural aging processes slow down
- metabolic processes are activated
- improve general condition
KENCOS by AquaBank
Promoción KENCOS4 Kit de Inicio 💙 inhalador con consumibles
















A new way to take care of your health with daily hydrogen gas inhalations

Recommended by professionals
703 neurologists and neurosurgeons were surveyed online and 88% responded that they would recommend KENCOS4 inhalers

A new therapy
Hydrogen inhalation therapy continues to attract the attention of experts in the field of preventive and recovery medicine around the world. Learn more about the benefits of daily hydrogen inhalations on our blog

A new habit
KENCOS launches an era of hydrogen gas inhalations as a new habit to maintain your health. The compact design allows you to inhale hydrogen gas at any time and take it anywhere, improving your daily lifestyle. Enjoy hydrogen inhalations during work, at the gym, when traveling or simply to live healthier.
compared to other inhalers
Advantages of KENCOS

Portability
Until KENCOS, hydrogen inhalers were large machines that were only available for use in specialized clinics.
Affordability
For those unfamiliar with hydrogen inhalation, most products on the market consist of large, bulky and expensive units that can cost upwards of €2000 and must be used in specialized locations, sitting or with a face mask. But due to its compact design and innovations, KENCOS can be purchased for a fraction of what larger machines on the market are for sale.
Simplicity
Easy to use without the need for complicated equipment and instructions, KENCOS has a single button to activate the electrolysis process.
Flavor cartridges
KENCOS is equipped with a unique flavor function . As hydrogen is naturally a tasteless and odorless gas, this feature was designed to allow for a more pleasant inhaling experience. This is completely optional and by not using the flavor mode, you are not causing any negative effects on the main function of hydrogen inhalation
Recognized for its safety and high-quality design
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Certified Health Improvement Product
"Certified Health Improvement Product" refers to machinery and equipment designed to improve people's health, beauty and quality of life (QoL) and certified by the Japan Home Health Appliance Industrial Association.
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Recommended by the Japanese Association of Preventive Medicine for Adult Diseases
This recommendation means that the Japanese Association of Preventive Medicine for Adult Diseases has recognized KENCOS as a product that can contribute to the spread of preventive medicine, meeting its strict screening criteria.
Frequent questions
How does KENCOS generate hydrogen?
KENCOS generates hydrogen through the electrolysis process. Electricity is fed to the tank where it splits the electrolysis liquid into oxygen and hydrogen. The gases then travel through a small tube and are inhaled. 8 ml of hydrogen gas is generated per minute. Read more
What consumables do I need to make the KENCOS work?
Electrolysis liquid is necessary to produce hydrogen. Flavor cartridges add a nice element to practicing hydrogen inhalation for health, however, they are not necessary for hydrogen production.
How long does the battery last?
After being fully charged, the battery will last 40 minutes if you use hydrogen only mode and 20 minutes if you use hydrogen + flavor only mode.
Is there a warranty included?
There is a 1 year warranty included. Keep the warranty certificate and proof of purchase. Please refer to the instruction manual for more warranty details.
How can I check the remaining battery level?
First, turn on the device by pressing the power button three times in a row. Once the device is turned on, the battery level will be quickly displayed according to the color that lights up on the button. Blue = 80% or more, Green = 20% - 80%, Red 20% or less.
Are the ingredients in the flavor cartridges safe?
All ingredients within the flavor cartridges are completely safe for consumption.
How long does a flavor cartridge last?
The life of the flavor cartridge will largely depend on the strength and frequency of each inhalation.
How long does a bottle of electrolysis fluid last?
If KENCOS is used five times a day for 5 minutes each time, the liquid should last approx. 6 days.
How much electrolysis liquid should I put in the tank?
Each time the liquid is replenished, all the previous liquid must be discarded and the entire contents of the new bottle must be poured into the tank. It is important to never fill the liquid in parts, as this will affect the balance of the electrolysis liquid formula.
Can a pregnant woman use KENCOS?
While hydrogen is completely safe to inhale, we insist that if you use it while pregnant or breastfeeding, consult your doctor first.
How often should I use KENCOS?
KENCOS can be enjoyed safely without restrictions and at any time of the day, however, as our research is based on using the device 5 times a day for 5 minutes each time, we recommend this use as the recommended one.
Is it safe to use around babies and small children?
KENCOS will not cause any harm to babies or young children, however, as the inhalation action may seem inappropriate for younger ages, we recommend that you do not use KENCOS in the presence of babies and young children.
Which way should I inhale?
Inhale confidently but not too deeply for a few seconds per inhalation. It is particularly important not to inhale deeply when using flavor mode, as this can potentially burn the contents of the cartridge.
Nothing comes out when I inhale and exhale the hydrogen.
Hydrogen cannot be seen and has no taste. Whenever bubbles are generated in the electrolysis tank, this means that hydrogen is being produced. Use the flavor cartridges to visualize your inhalation experience.
What is the black cartridge for?
The black cartridge simply acts as an object to block any gas escape and should always be installed when using hydrogen only mode. Do not use flavor mode with the black cartridge installed.
What happens if I turn on flavor mode with the black cartridge installed? Is there a special black flavor?
The black cartridge is a dummy cartridge needed to block the flow of hydrogen. If installed during flavor mode, the heater will not have any liquid to burn and therefore the device will automatically stop working.