Simple 4-Step Operation
How to Use H2CAP Plus
From tap to hydrogen-rich water in under four minutes — no installation, no learning curve.
1
Fill & Attach
Fill the bottle to the marked line, attach H2CAP, and turn it upside down.
2
Connect USB-C
Plug the USB-C cable into H2CAP and connect it to any power source.
3
Auto Operation
It starts automatically and stops when the 3:30 cycle is complete.
4
Detach & Drink
Remove H2CAP and enjoy freshly generated hydrogen water right away.
Smart Technology
Self-Monitoring, Automatically
H2CAP Plus continuously watches the condition of its electrode plates and PEM membrane, adjusting the cycle to keep hydrogen output stable and consistent — every single time.
- Auto electrode & membrane monitoring — protects performance over time
- Smart auto shut-off when the target concentration is reached
- Stable 1,200–1,500 ppb output, cycle after cycle
H2CAP Plus
Do
- Use cold or room-temperature still water for best output
- Drink immediately — H₂ is a gas and escapes over time
- Keep a few drops of water inside and the cap closed when idle (hydrophilic PEM)
- Use filtered/purified water for the cleanest taste
Don't
- No hot water (above ~40 °C) — it degrades the PEM membrane
- No carbonated water — CO₂ disrupts electrolysis & builds pressure
- Don't let the unit dry out for long periods
- Avoid impact or dropping — protect the electrode assembly
The concentration question: most positive research outcomes involve hydrogen water at 1,000–1,600 ppb. Devices producing less than 500 ppb may not deliver research-consistent concentrations. H2CAP Plus consistently produces 1,200–1,500 ppb — so timing and freshness are the only variables you control.
Want the Research Behind It?
See the peer-reviewed studies on molecular hydrogen — or talk to us about bringing H2CAP Plus to your market.