Hydro Gen · 900ml/min

Start where the evidence starts.

The entry point to the H2 Pure Life range. Biologically active, meaningfully above low-flow consumer devices, and the first considered step for those beginning a hydrogen practice.

£2,450 From £612/mo with Clearpay

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Questions before you decide?

Call 01904 530937 — Mon–Fri, 10am–2pm

Hydro Gen on a bedside table in a quiet bedroom, soft morning light
UK stock Free next-day delivery USA-manufactured PEM membrane 2-year UK warranty UK phone support

The specifications

Four numbers worth knowing.

Flow rate is the variable that matters most. Everything else is shared across the range — the same USA-manufactured PEM membrane, the same warranty, the same UK support. What changes between machines is how much pure molecular hydrogen reaches you per minute.

900 ml/min

Hydrogen flow rate

18 litres

Per 20-minute session

60 min

Typical daily session

99.99%

Hydrogen purity

Where the Gen sits

Three machines. One difference.

Same technology. Same manufacturing standard. Same USA-made PEM membrane. The only thing that changes is flow rate — where each session sits within the range the peer-reviewed literature has explored. The Hydro Gen is, deliberately, the entry point — not a compromise, but a first step.

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Entry

Hydro Gen

900 ml/min

A considered first step. Biologically active, properly supported, and where most hydrogen practices begin.

£2,450

You are here
★ Recommended

Flagship

Hydro Nova

1,500 ml/min

Within the studied range, above what most consumer machines manage. The flow rate most of our customers choose, and the machine we recommend for daily use.

£2,750

View Hydro Nova →

Professional

Hydro Medic

3,000 ml/min

For practitioners and serious longevity protocols. Twice the flow of the Nova, for those whose needs go beyond daily maintenance.

£4,750

View Hydro Medic →

What's in the box

Everything to begin, in a single box.

Delivered free, next working day, from UK stock. Unpacked, filled with distilled water, and running inside five minutes.

  • 01

    Hydro Gen machine

    USA-manufactured PEM membrane, pre-fitted filter, UK power lead, and printed manual included.

  • 02

    Three silicone cannulas

    Soft, skin-friendly silicone with a standard connector. Approximately three months’ supply.

  • 03

    TDS water-quality pen

    For confirming distilled-water purity before each refill. A small instrument; a useful habit.

  • 04

    Pre-fitted filter

    Already in place. Lasts roughly twelve months under daily use. Replacement pack of two: £39.

  • 05

    UK power lead and manual

    Standard UK three-pin mains lead. Printed manual, in plain English. Digital copy available on request.

  • 06

    2-year UK warranty

    Registered automatically. Handled by our UK team directly — no postage, no distributor in between.

The full specification

Every number, on one page.

For those who want the detail before they decide. Flow rates, dimensions, materials, certifications, what's in the box — everything is here.

Output & performance
Flow rate900 ml/min recommended daily setting. Adjustable 450 / 900 / 1,200 ml/min via the control panel.
Output compositionHydrogen and oxygen in a 2:1 ratio by volume. The H₂ component is 99.99% pure — no catalyst residue, no contaminants.
Session timerSettable from 20 minutes up to 8 hours continuous. Auto-shutoff on completion.
Noise level20 dB. Quieter than a whisper. Comfortably placed on a side table for a session without intrusion.
Power & electrolyzer
ElectrolyzerSolid polymer electrolyte (SPE / PEM) with N117 membrane, manufactured in the United States. Pure-water type, no catalyst additive required.
Membrane lifespan10,000 hours rated. At one hour per day, more than 27 years.
Power supplyStandard UK three-pin mains.
CertificationCE certified.
Build & engineering
MaterialsNo PFAS (“forever chemicals”) used anywhere in the machine or its fluid path.
Gas handlingBuilt-in mixing of hydrogen and oxygen with intelligent sensor array. Explosion-proof design with triple protection.
CoolingIntelligent air-cooled heat dissipation with water-circulation support.
HumidifierOne-way sealed design with integrated purification.
Connectivity & UI
Water-quality detectionContinuous monitoring of input water quality during operation.
Operation feedbackIntelligent voice broadcast for session status, water alerts and timer notifications.
ControlsFront control panel with flow-rate selector, timer and session start/stop.
Dimensions & weight
Dimensions22 × 42 × 42 cm (W × H × D).
Weight9.8 kg empty. Slightly more with a filled tank.
Water tank2.6 litres. A single fill runs for multiple sessions.
Water typeDistilled or deionised water only. Approximately £1 per litre at supermarkets.
In the box
MachineHydro Gen with pre-fitted filter, UK power lead and printed manual.
CannulasTwo soft silicone cannulas, standard connector.
FilterOne filter included, pre-fitted. Lasts approximately 12 months. Replacement pack of two: £39.00.
Warranty2-year UK warranty, registered automatically and handled by our UK team.

Instruction manual — the full manual is available on request. Email our UK team and we’ll send a copy by email, or include a printed version with your order. We’d rather talk you through anything you’re unsure about before you buy.

A note from the founder

The first step is the one that actually happens.

The Hydro Gen exists because the most expensive machine in the world is the one that arrives, gets plugged in once, and then quietly migrates to the back of a cupboard. Hydrogen inhalation only does anything if it becomes a daily practice — and a daily practice is more likely to begin when the machine in front of you feels like a considered decision.

900 ml/min is not a token gesture. It is meaningfully above the low-flow devices commonly sold elsewhere, it is biologically active, and the research literature on hydrogen at this kind of dose is genuinely interesting. It is not at the upper end of the studied range — that is the Nova’s job, at 1,500 ml/min — but it is a serious entry point, not a watered-down one.

Most people who start here move to the Nova within a year. Some stay. Either is a good outcome. What matters is that the machine arrives, gets used, and quietly proves itself across the small, repeatable mornings and evenings where habits are actually built. That is what the Hydro Gen is for.

— Phil, founder

Honest answers

The questions worth asking.

01 · Why start with the Hydro Gen and not the Nova?

The Gen is the right entry point if you’re new to hydrogen inhalation and want a considered first step without the full commitment of the Nova. 900 ml/min is biologically active and significantly above the low-flow devices commonly sold elsewhere. If you already know you want a flow rate at the upper end of the studied range, the Nova is the right starting machine.

02 · How long is a typical session?

Most Hydro Gen users run sessions of 60 minutes once daily. That can be split across the day if preferred. Sessions integrate quietly into the rhythm you already have — watching television, reading, working from home.

03 · Can I upgrade to the Nova later?

Yes. We run an upgrade programme: if you decide within the first twelve months that you’d like to move to the Nova, we’ll take the Gen back and credit its full purchase price against the Nova. Email our UK team for the current terms.

04 · What kind of water does it need?

Distilled or deionised water only. Tap water contains minerals that shorten the life of the electrolyzer considerably. Supermarkets stock distilled water at roughly £1 per litre; a single tank holds 2.6 litres and runs for several sessions. The TDS pen included in the box lets you confirm the water is pure before each refill.

05 · Is it noisy?

No. The Hydro Gen runs at 20 decibels — quieter than a whisper, quieter than a laptop fan. Most users place it on a side table during a session and forget it is running.

06 · What’s included with delivery?

The machine, three silicone cannulas, a pre-fitted filter, a TDS water-quality pen, the UK power lead, and the printed manual. Delivery is free, next working day if ordered by 2pm. The 2-year UK warranty is registered automatically — nothing to post back. If you’d like to read the full manual before ordering, our UK team will email a copy on request.

07 · Do you offer payment plans?

Yes. We offer Klarna and Clearpay at checkout, both interest-free. The Hydro Gen works out at around £612 per month over four months with Clearpay, or three monthly payments with Klarna. If you'd rather arrange something different, our UK team can help — just email us.

08 · What happens if something goes wrong?

Email our UK team. We handle warranty directly — no international returns, no grey-market complications, no going through a distributor. If a repair is needed, we arrange collection and cover postage both ways for the first two years.

A considered first step, properly supported.

Free next-day delivery, two-year UK warranty. If you'd rather ask a question before deciding, our UK team replies to every email personally, usually within the working day. We'd rather you made the right decision than the fast one.