Question 1

Do you really ship worldwide for free?

Accepted Answer

Yes. Every machine ships free worldwide, tracked door-to-door, typically 10–14 business days. Customs duties and local taxes are prepaid by us before dispatch wherever the destination country permits (DDP) — the price you see is then the price you pay. In countries that don't accept DDP, the carrier collects applicable duties and taxes on arrival; we email you when the shipment clears, before any payment is requested. See the Shipping Policy for the country-by-country breakdown.

Question 2

What's the warranty?

Accepted Answer

12-month manufacturer warranty on every machine, covering the electrolysis stack, electronics and pumps. International coverage.

Question 3

Can I return it?

Accepted Answer

Yes — 30-day returns from the day your machine arrives. See the Returns & Refunds policy for the full process.

Question 4

Which machine should I start with?

Accepted Answer

Most first-time buyers choose the P58 at $1,795. If you want a quieter daily-protocol machine, look at the QY-A1200. If you want maximum versatility (inhalation + drinking water) the W30 is the pick. The QY-A1800 is the highest-output inhaler in the range. For bathing, choose the S69.

Question 5

How do I know it will actually arrive and work?

Accepted Answer

Hydrogen Machines is operated by YBG Group International Pty Ltd, a registered Australian company. Every order is tracked and insured. Every machine is factory-tested before dispatch.

Question 6

What is FCC Part 15 Subpart B and why does it matter?

Accepted Answer

FCC Part 15 Subpart B is the US federal electromagnetic emissions standard for electronic devices. Unlike CE certification, which can be self-declared, FCC Part 15 Subpart B requires independent laboratory testing by an accredited facility — conducted and radiated emission testing across the full frequency range, in a calibrated anechoic chamber. Seven machines in our range carry FCC Part 15 Subpart B compliance: QY-A900, QY-A1200, QY-A1800, QY-A3000, QY-F6000, QY-F8400 and WZ-1. Certificate LST250598095F. Full test report downloadable at hydrogenmachines.com.au/certifications. For European and German buyers in particular — a machine carrying both CE and independently tested FCC Part 15 Subpart B compliance represents a higher documentation standard than CE alone.

Question 7

What is molecular hydrogen (H₂)?

Accepted Answer

Molecular hydrogen is the smallest, lightest molecule — two hydrogen atoms bonded together. At wellness-inhalation concentrations it's odourless, tasteless and non-toxic.

Question 8

What is a hydrogen water machine?

Accepted Answer

A hydrogen water machine uses PEM/SPE electrolysis to split water into hydrogen and oxygen, then dissolves the hydrogen back into drinking water. The result is regular water (still H₂O) with extra dissolved molecular hydrogen gas — typically 0.5–1.6 ppm on consumer units. See our full explainer in the hydrogen water guide.

Question 9

How does a hydrogen water machine work?

Accepted Answer

A small electrical current is passed through a proton exchange membrane (PEM) sitting in distilled water. The membrane splits water into hydrogen on one side and oxygen on the other, keeping the two gas streams separate. The hydrogen is then either fed into drinking water (for water machines) or sent to a cannula or face mask (for inhalation machines).

Question 10

What is a hydrogen inhalation machine?

Accepted Answer

A hydrogen inhalation machine produces molecular hydrogen gas (H₂) via PEM/SPE electrolysis and delivers it via nasal cannula or face mask. Inhalation delivers a much larger H₂ dose per session than drinking hydrogen water, because the gas goes straight into the lungs rather than dissolving into water.

Question 11

What is the best hydrogen water machine?

Accepted Answer

There's no single 'best' — it depends on whether you want drinking water, inhalation, or full-body bathing, and on your daily session length. For drinking water that doubles as a hydrogen bath, the WZ-1 is the pick. For inhalation, most first-time buyers choose the P58 ($1,795) or QY-A1200 for daily use. Use the comparison page to see the eight machines side by side.

Question 12

What is a hydrogen bath?

Accepted Answer

A hydrogen bath is a regular bath with extra molecular hydrogen in the water. Two ways to do it: bubble hydrogen gas into the bath via a diffuser stone (the S69 approach), or produce hydrogen water and add it (the WZ-1 approach). No plumbing required for either — both are free-standing units that sit beside the bath.

Question 13

Where can I buy a hydrogen water machine in Australia?

Accepted Answer

Direct from us at hydrogenmachines.com.au. We're operated by YBG Group International Pty Ltd, a registered Australian company, and ship worldwide free of charge with duties and taxes included in most countries — Australia included — and a 12-month manufacturer warranty.

Question 14

Are there side effects to drinking hydrogen water?

Accepted Answer

At the concentrations produced by consumer machines, the published literature reports no significant adverse effects in healthy adults. The most commonly user-reported issues are mild headaches in the first few inhalation sessions (resolves by ramping up gradually) and loose stools from magnesium-tablet hydrogen water (caused by the magnesium, not the H₂). Full detail in the side-effects guide.

Question 15

Why is it studied?

Accepted Answer

Over 1,000 peer-reviewed publications describe H₂ as a selective antioxidant — meaning it preferentially reacts with the most reactive radical species while leaving signalling radicals intact. It's an emerging research field, not a settled area of clinical practice.

Question 16

Is this a medical treatment?

Accepted Answer

No. Hydrogen Machines products are general wellness devices. They are not medical devices and are not intended to diagnose, cure, treat or prevent any disease. Consult a qualified health professional before starting any new wellness routine.

Question 17

What water do the machines use?

Accepted Answer

Distilled or deionised water in the internal reservoir. Tap water contains minerals that will scale the electrolysis stack and shorten its life. Full guide: hydrogenmachines.com.au/guides/what-water-to-use-in-hydrogen-inhaler

Question 18

How loud are they?

Accepted Answer

Inhalers run between roughly 35 and 50 dB depending on model and flow setting — quiet enough for a bedroom or quiet wellness room. The QY-A1200 is the quietest in the range.

Question 19

Can multiple people share a session?

Accepted Answer

Yes — use the dual nasal cannula accessory to run two simultaneous users on a single machine.

Question 20

What about the bath system?

Accepted Answer

The S69 is a free-standing tower. Sit it next to your bath, drop the diffuser into the water, and turn it on — no plumbing required.

Question 21

Can I breathe hydrogen only, or hydrogen with oxygen?

Accepted Answer

Both. Every machine splits water by electrolysis into hydrogen and oxygen at the natural 2:1 ratio (2H₂O → 2H₂ + O₂), and the PEM membrane keeps the two streams separated at the outlets. You have three options:

Mode 1 — Hydrogen only: connect the cannula to the H₂ outlet. The oxygen stream vents separately.
Mode 2 — Combined hydrogen + oxygen (2:1): join both outlets with the included Y connector and breathe the full combined hydrogen–oxygen flow.
Mode 3 — Two users: with the dual cannula accessory, one machine runs two people at once.

Safety note: the gas is delivered at low flow into ambient air through an open cannula — it is not stored or pressurised. Keep the unit away from open flames or ignition sources during operation. [TODO: cite specific flammability percentage from the supplier manual once confirmed.]

Question 22

Do you sell accessories separately?

Accepted Answer

Yes. Single and dual cannulas, hydrogen face mask, hydrogen goggles, and a portable hydrogen rod are all available on the Accessories page or as checkboxes inside any machine's buy box.

Question 23

What water should I put in the machine?

Accepted Answer

Distilled or deionised water only — double-distilled is even better. Never use tap water, spring water, mineral water or filtered tap water. Dissolved minerals scale the PEM/SPE stack, drop hydrogen output and shorten the life of the electrolysis cell. This is the single most common cause of warranty issues. Full guide with TDS meter instructions: hydrogenmachines.com.au/guides/what-water-to-use-in-hydrogen-inhaler

Question 24

How often should I change the water?

Accepted Answer

Empty, rinse and refill with fresh distilled or deionised water at least every 20 days under normal daily use. Change it sooner if the water looks cloudy, discoloured or has any visible particles — that's a sign of contamination or mineral buildup and the machine will run cleaner on a fresh fill.

Question 25

How should I store the machine between sessions?

Accepted Answer

Leave a small amount of distilled water in the reservoir so the PEM/SPE membrane stays hydrated. A fully dry membrane can crack or degrade, which permanently lowers hydrogen output. If you're storing the unit for longer than a couple of weeks unused, top up to the minimum fill line rather than draining it completely.

Question 26

Should I talk during a session?

Accepted Answer

Try to keep talking to a minimum while inhaling. The cannula delivers a steady, low flow of hydrogen into your nose — every time you open your mouth to speak you breathe in more room air and less of that hydrogen stream, so the dose reaching your lungs drops. Most people use sessions to read, rest, meditate, work quietly or sleep. Short conversations are fine; long phone calls partly defeat the purpose.

Question 27

I'm new to hydrogen inhalation — how should I start?

Accepted Answer

Start short. Most first-time users do 10-minute sessions for the first few days, then add roughly 10 minutes every three days if they feel fine, until they reach the duration they're aiming for. Ramping up gradually is more important on the higher-flow models (QY-A1800, W30) than on the entry-level P58. If anything feels off — light-headedness, headache, anything unusual — stop, return to a shorter session length, and speak to a clinician before continuing.

Question 28

How long should each session be?

Accepted Answer

There is no single correct duration — it depends on the model's flow rate and what you're aiming for. A common community starting point is around one hour per day at ~900 ml/min, with more active users doing 1–2 hour sessions morning, midday and evening. Session time scales with flow rate: one hour at 900 ml/min is roughly equivalent to 30 minutes at 1,800 ml/min. These are general guidelines from the wider hydrogen-user community, not a medical protocol — Hydrogen Machines products are wellness devices and we don't prescribe doses.

Question 29

I can't see, smell or feel anything — is it actually working?

Accepted Answer

Yes — that's normal. Hydrogen is colourless, odourless and tasteless, and the flow out of a cannula is gentle relative to your normal breathing (an adult moves several litres of air per minute even at rest). The simple at-home check: disconnect the cannula and dip its tip a couple of centimetres into a glass of water. You should see a steady stream of fine bubbles. If you don't, contact us — that points to either a water issue (wrong water type, low level) or a hardware fault.

Question 30

Can I inhale too much hydrogen?

Accepted Answer

At the inhaled concentrations produced by consumer machines, the published literature has not established a toxic dose — hydrogen that isn't absorbed by the body is simply exhaled. That said, "no established toxic dose" is not the same as "unlimited is beneficial". Build up gradually, listen to your body, and if you have an underlying medical condition or take medication, talk to a qualified clinician about what's appropriate for you.

Question 31

Is hydrogen gas dangerous to use at home?

Accepted Answer

In normal home use, no. Hydrogen is only flammable in air at concentrations between roughly 4% and 75%. Our inhalers produce a small, continuous flow (hundreds of ml/min up to ~1.8 L/min on the highest-output model) that disperses into ambient room air — many orders of magnitude below the lower flammability limit in any normally ventilated room. Sensible precautions still apply: use the machine in a ventilated space, and keep it away from open flames, lit cigarettes, gas hobs and other ignition sources while it's running. The PEM/SPE membrane separates hydrogen and oxygen inside the machine, so the gas at the cannula is not a pre-mixed flammable blend.

Question 32

Is hydrogen inhalation safe?

Accepted Answer

At the concentrations produced by these wellness machines, the published literature reports no significant adverse effects. Every machine in the range uses PEM/SPE membrane separation, so the user-facing stream is high-purity H₂ — there is no flammable mixture at the cannula.

Question 33

Who should consult a clinician first?

Accepted Answer

Anyone who is pregnant or breastfeeding, under 18, or has a serious cardiovascular, respiratory or neurological condition; anyone using supplemental oxygen; anyone in active cancer treatment; or anyone on medication where oxidative stress plays a defined clinical role. Hydrogen Machines products are wellness devices, not medical equipment.

Question 34

What safety features are built in?

Accepted Answer

Over-temperature, over-pressure and low-water cut-offs on every machine. UV-stabilised reservoirs. Separated gas streams via SPE/PEM membrane.

Frequently asked questions

Buying & shipping

Molecular hydrogen — the basics

Using the machines

Getting started & daily care

Safety

Ready to choose?

From the people who made the switch.