Meet The Echo Flask™
Inside every Echo device is special technology that turns normal water into hydrogen-rich water.
At the center is the Echo Hydrogen Generator. It uses two titanium plates coated with platinum and a thin proton exchange membrane between them. These laboratory-grade materials are chosen because they are strong, clean, and safe.
The proton exchange membrane was first made for NASA. Today, it's used in hydrogen cars and other advanced machines. It lets pure hydrogen gas mix into your water while the oxygen is released into the air.
Our carefully shaped plates make sure the electric current spreads evenly, without heat or damage. That means the Echo Hydrogen Generator makes hydrogen faster and more efficiently.
Every part is built from laboratory-grade materials and made to last a long time, so you can always count on clean, high-quality hydrogen water.
🔗 Features, Construction & Specifications
Important Safety Information
Do not microwave, refrigerate, or freeze the Echo Flask™
Do not submerge or place in the dishwasher
Do not operate the Echo Flask without water in the bottle/generator.
⚠️ Contents may be flammable. Keep away from open flames and ignition sources.
🔗 Is Hydrogen Water Flammable or Dangerous?
💧The Flask™ contains a small amount of distilled water to keep the membrane primed. (This water is NOT for consumption.) Your Flask™ is clean and ready to use.
When first using the Flask™, it may take up to one week of regular, consistent use for your flask to build full pressure and produce consistent hydrogen bubbles.
🔗 Why does the Flask™ generator need to be wet?
🔗 What if mine didn't arrive with water?
🔗 Understanding your bubble performance and troubleshooting
How to use your Flask™
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Fill the Flask™ to the top of its shoulder with water; never operate dry. We recommend purified or distilled water for the best performance
- Secure the cap by applying downward pressure while twisting until it clicks and locks into place.
- The Echo Logo should sit horizontally or vertically. The cap locks every 90 degrees.
- Swipe up on the Flask™ screen and press the play button to activate the hydrogen infusion cycle
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When the cycle ends, press the dot on the cap to release pressure for at least 3-5 seconds before opening. If you find your cap is difficult to remove, press the release again in case there may be any remaining pressure (remaining pressure will make the cap difficult to remove).
You may experience different sounds depending on how much pressure remains:Your Echo Flask™ is designed to automatically manage internal pressure during and after each hydrogen cycle. Because of this, you may hear different sounds — or none at all.
Sound variation does NOT affect hydrogen concentration (PPM).
🔗 Understanding the pressure, releasing pressure & different sounds
- Twist off the cap by gripping the sides of the lid, pressing downward on the sides (not on the pressure release, this is after you've already released the pressure) and twist counterclockwise, applying gentle force, similar to opening a pill bottle.
🔗 Difficulty Removing Your Echo Flask Lid
💧Small drips from the oxygen port are normal and typically resolve after several uses. This is not considered a leak—it’s an occasional and expected result of oxygen being expelled through the port (even beyond the first use).
Echo Flask™ Operating FAQs and Solutions
🔗 Understanding your Echo Flask™ Lid
Step-by-step guide on how to remove the lid, Pressurization, Sounds, & Troubleshooting
🔗 How to use your Echo Flask™ Screen
Screen Safety, Display Settings, & Troubleshooting
🔗 Understanding your Flask™ Generator
Bubble performance, Sounds, Expected Leaks, LED Lights, & Troubleshooting
Your Echo Flask™ is designed to run 5–7 cycles of 10 minutes or 3–4 cycles of 20 minutes per full charge.
When to Charge
For optimal battery health, it’s best to let the battery fully discharge before recharging — allow the Flask™ to run until it can no longer complete a full cycle.
How to Charge
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Locate the Charging Port
The port is located under the display screen on the generator.
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Connect the Charger
Plug the USB-C cable into the generator’s port.
Connect the other end to a 5 V, 2 A charger block (any compatible USB-C or USB-A adapter works).
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Charge Fully
Allow up to 2.5 hours for a complete charge.
Your battery indicator may show green with full bars after a few minutes, but the battery still needs the full charge time to reach optimal capacity.
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Monitor Charging
Avoid overcharging or leaving the Flask™ plugged in continuously, as this can reduce long-term battery life.
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Unplug After Charging
Once fully charged, unplug the Flask™ to prevent potential battery damage, overheating, cord damage, or fire risk.
🔗 Echo Flask™ Battery & Charging Guide For battery information, step-by-step charging guide, air travel, & Troubleshooting
Inside
Bottle (weekly): Wash with mild soap and water. No harsh chemicals. Rinse thoroughly with warm filtered water.
H2 Generator (Monthly - to remove mineral buildup): Fill with 1/3 vinegar and 2/3 warm distilled water. Rinse, fill with filtered water, and run the "Clean Flask" cycle from the settings menu. Rinse thoroughly when complete.
Outside
Hand wash only with a damp cloth. Do not put in the dishwasher or submerge in water.
🔗 Cleaning & Maintenance of Your Echo Flask™ - Cap care, cleaning agents, scrub brush, taste/odors, mildew/mold, FAQ's, and Solutions.
Echo Water App
To download the app, you’ll find it in the Apple App Store or the Google Play Store under "Echo Water."
For a complete overview of the app, including step-by-step instructions, FAQs, and solutions, please visit our App Manual below:
🔗 Echo Flask™ Warranty Coverage - limitations, registration, where to file a claim
🛡️ If you bought directly on Echowater.com or Echowater.co.uk, you do not need to register your product as you are already in our system.
Echo Flask Replacement Parts
Some parts of your Echo Flask™ are not covered under the standard warranty, and sometimes you may want extra or replacement parts for convenience. Either way, you can purchase these parts below.
🔗 Gasket
- Purchased from Echowater.com: 🔗 Return Portal
- Purchased from Echowater.co.uk: 🔗 UK Return Portal
- 3rd Party Returns: Returns must be handled through the retailer where you made your purchase. Their return policies and timelines will apply, so we recommend contacting them directly for assistance.
❔Common Customer Questions
🔗 How long to feel the benefits of Hydrogen Water?
🔗 Why am I experiencing unexpected symptoms after starting Hydrogen Water?
🔗 What sets your Flask apart from others?
🔗 Why is the Echo Flask made of plastic?
Need Help? We’ve Got You Covered
If you have a question, need assistance, or something doesn’t seem quite right, our team is here to help between 9 AM and 5 PM MST, Monday through Friday..
🔗 Echo Water Support: You've got Questions, We've Got Answers!
Hydrogen Water Overview
🔗 Hydrogen Water Storage | How to Store, how long does hydrogen last after a cycle, can it be put in a different container other than my Flask
🔗 Guidelines for Using Hydrogen Water with Cold Water, Heat, and Additives
We value your feedback, which helps us improve our service. We’d love to hear about your experience with the Echo Flask™!
Note: If you’re experiencing an issue, please contact our support team directly. The review section is not connected to our support system, and we want to ensure we address your concerns promptly.
We believe you deserve to know exactly what’s going on inside the bottle you use every day. That’s why the Echo Flask™ has been independently tested by certified third-party laboratories—because trust shouldn’t require blind faith.
The Echo Flask™ has undergone rigorous evaluation by H2 Analytics and SilverState Analytical Laboratories to verify both safety and performance.
These independent tests confirm that the Echo Flask™:
Does not produce heavy metal byproducts
Meets strict safety and performance standards
Generates hydrogen cleanly and safely
We don’t just say it—we back it up.
*Full laboratory reports are available in the attachments section below
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