Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code APR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code APR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code APR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code APR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code APR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code APR20
Free UK delivery for orders over £50
365 Day Returns
£20 off orders over £100 – code APR20

Echo Water Flask

Experience the power of hydrogen-rich water with Echo Flask—high-performance hydration with smart tracking, a non-slip design, and up to 8 ppm molecular hydrogen.

size:

12oz

£284.99
Back in stock: 15/05/2025

Buy now, pay later from £71.25/mo with

Free UK shipping over £50, free returns.
  • american-express
  • apple-pay
  • google-pay
  • master
  • paypal
  • visa

Key Benefits

  • Provides up to 8 ppm hydrogen to support cellular health and performance.

  • Monitors intake and hydrogen levels.

  • Secure grip and travel-friendly design.

  • 12-ounce capacity.

  • Bluetooth connectivity that syncs with your phone for insights.

The Echo Flask takes hydration to the next level with cutting-edge hydrogen infusion technology. Using an advanced proton exchange membrane, it produces up to 8 ppm of molecular hydrogen—far surpassing standard hydrogen bottles. Hydrogen-rich water is scientifically known to support cellular health, enhance recovery, and improve energy levels.

Designed for performance and convenience, the Echo Flask features a sleek, durable build with a 12-ounce capacity—perfect for longer hydration without frequent refills. The non-slip textured surface ensures a secure grip, while its compact design fits seamlessly into cup holders for effortless travel. A quick-latch lid with a pressure release valve allows for smooth, spill-free hydration. The smart digital display tracks hydrogen potency and hydration cycles, while Bluetooth connectivity syncs with your phone for personalised insights.

Stay hydrated, recover faster, and optimise wellness with every sip.

Echo offers advanced water filtration systems that infuse water with hydrogen molecules to enhance hydration and wellness. Unlike many hydrogen water machines, Echo Hydrogen Water Machines are designed to deliver consistent hydrogen infusion for long-term use. The technology infuses hydrogen without altering the water’s pH, maintaining the water’s natural balance. Echo makes it simple and effective to enjoy the benefits of hydrogen-enriched water, elevating your hydration experience.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Shipping

At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.

UK standard delivery

Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.

Next working day

For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.

International

International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.

Returns

If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.

For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.

1. Fill the bottle with warm, filtered water and run a cycle.

2. Secure the cap by twisting until you hear a "click" (ensure the logo aligns at a 90-degree interval).

3. Release pressure by pressing the side marked with a circle before removing the lid.

4. Listen for a faint hiss or pop and look for bubbles rising, confirming pressurization.

5. Discard the water, rinse the flask, and it's ready for your first hydrogen cycle.

Reverse Osmosis, Distilled, Spring, or Filtered water is recommended. Do not use carbonated or non-water beverages.

Do not directly add supplements, minerals, or flavoring to the flask; use a separate container.

For optimal benefits, consume hydrogenated water within 2 hours. However, the lid's design minimizes hydrogen escape, allowing the water to maintain similar PPM levels even if left overnight.

Operation and Charging


Do not disassemble, modify, or repair the Echo Flask™; this will void your warranty.


Avoid excessive force or impacts; contact customer support if the flask is dropped or damaged.


Do not operate the generator without water in the flask.


While charging, limit cycles to (1–2) 10-minute cycles. Each charge supports up to 5-7 10-minute cycles.


If the electrodes have been dry or unused for one week or longer, rehydrate the flask (see the "Initial Set Up: Rehydration" section in this manual).


Ensure only manufacturer-certified replacement parts are used.


Avoid touching the charging cord or USB-C input with wet hands.

Storage, Cleaning, and Maintenance


Keep the electrode plate wet with one tablespoon of water; do not store it completely dry. If your bottle dries out, it will need to be rehydrated.


Avoid storing with excessive water to prevent mold or mildew.


Leave the cap off briefly after use to allow moisture to dissipate.


When cleaning, use citric acid or white vinegar only. Avoid chemicals or dish detergent.


Do not clean the interior of the flask with chemicals; this can damage the electrodes. Only vinegar or citric acid should be used.

Safety and Handling


Always keep the Echo Flask™ out of reach of children and pets to ensure their safety and prevent accidental damage to the device.


Avoid heat, flames, and hot or humid environments (e.g., saunas, hot vehicles).


Do not place the Echo Flask™ on non-waterproof surfaces to avoid potential damage in the event of a leak.


Avoid direct sunlight or heat that could dry out the electrode plate.


Do not soak or submerge the flask or cap in water.


Do not microwave, refrigerate, or freeze the Echo Flask™.


Handwash only; do not place any component in the dishwasher.

You may also like

Shop by collection

Frequently asked questions

Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.

The Healf Journal offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.

We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.

Go to FAQs
Healf Zone Banner
New

100+ health markers.
Two annual at-home blood tests.
Personalised product recommendations.

Learn more

Healf Curation
Process™

Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.

Discover more
Go to Page

The Discovery

pointer

Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

Go to Page

Expert Validation

pointer

Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

Go to Page

Community Testing

pointer

By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.