Which hydrogen machine should I buy?
A short decision framework. Work top-down through application, output and use case — the machine usually picks itself.
Specifications at a glance
| If you're new to hydrogen | If you know what you want | |
|---|---|---|
| Step 1 — Application | Inhalation, bath or drinking water? | Same question, more specific |
| Step 2 — Users per session | One, two, or three+ | Same — and whether sessions are concurrent |
| Step 3 — Setting | Home or professional? | Home, studio, clinic, spa, retreat |
| Step 4 — Output class | Match output to users + session length | Match output to duty cycle + concurrent sessions |
| Step 5 — Budget | Entry / mid / premium band | Capital + running cost + warranty cover |
Specifications describe hardware and engineering parameters. They are not medical or therapeutic statements.
Key similarities
- Every Hydrogen Machines product uses PEM / SPE cell technology at high purity
- Every product carries hardware certifications (CE, FCC, RoHS where applicable)
- Every product ships free worldwide with a 12-month warranty
Key differences
- Inhalers vs bath machines vs combined inhale-and-drink machines are different categories
- Output classes (300 ml/min entry → 3000 ml/min multi-user) suit different protocols
- Home-portable vs continuous-duty professional is a different engineering class
Which one fits you?
Start with the QY-A900 or QY-A1200 — quiet, well-certified, easy to live with. See the beginners guide for the full reasoning.
QY-A1200 with the included Y connector for two-user sessions. Quietest in the range, designed for long evening sessions.
QY-A1800 — 1800 ml/min in a compact chassis. Best step up before moving to multi-user.
QY-A3000 multi-outlet platform — see the professional guide.
W30 — dual-mode inhalation and ≥3000 ppb drinking water from one machine.
Bath One™ (dedicated bath system) or WZ-1 (bath system, editorial range). See the Hydrogen Bath Machines pillar.
All recommended machines carry CE (EU electrical and EMC), FCC (US EMC) where applicable, RoHS and ISO 9001 / ISO 13485-aligned manufacturing. Certifications describe hardware and manufacturing standards, not therapeutic status.
View all certifications →All Hydrogen Machines products use distilled or RO water and a periodic cell-rinse cycle on the cadence in the manual. Continuous-duty machines should add an annual professional inspection.
Frequently asked questions
- What's the single best hydrogen machine?
- There isn't one. The right machine depends on application, users per session and setting. For a beginner solo home user it's typically the QY-A900 or QY-A1200; for a clinic it's the QY-A3000; for bathing it's the Bath One™ or WZ-1.
- Should I buy a combined inhalation + bath machine?
- Usually no. Dedicated inhalers and dedicated bath machines outperform combined units in their respective applications. The W30 is the exception — and it pairs inhalation with drinking water, not bathing.
- Is more output always better?
- No — see High output vs low output. More output means more hydrogen per minute, which matters most for multi-user or short sessions. Solo, long sessions are usually more comfortable at lower output.
- Do I need certifications?
- You want them. CE and FCC tell you the machine has been tested against recognised electrical and EMC standards. Treat the absence of either as a red flag.