What this guide covers.
This guide is written for US buyers considering a hydrogen inhaler for home use in 2026. It covers:
- What to look for in a hydrogen inhaler before purchasing
- The certification minimum for a machine sold and used in the US
- A side-by-side comparison of the full HERO range available to US buyers
- Which HERO machine suits which use case, on the same criteria
- How US buyers can purchase direct with free delivery and duties included
We have been selling hydrogen machines online since 2021. The specifications and certifications we publish are verified and documented — not estimated. Every figure in the comparison below is read directly from our product catalogue.
What to look for — five criteria.
Apply these five criteria to any machine you are considering. They separate machines that are engineered correctly from those that are not.
1. PEM/SPE electrolysis — not alkaline
PEM/SPE and alkaline electrolysis use different cell designs and electrolytes. Check the chosen model's specifications and documentation instead of assuming a purity figure from its technology. See PEM electrolysis explained.
2. Model-specific purity documentation
Request a report covering the exact model and measured gas outlet. A technology label is not evidence of a particular purity figure.
3. FCC certification for US buyers
Request the exact model's FCC documentation and check its scope. The five named HERO Inhaler models have model-specific supporting documents. These describe hardware and emissions, not medical or therapeutic status.
4. Certified flow rate — ml/min
Flow rate determines how much hydrogen is delivered per session. It should be a certified figure in ml/min — not a marketing estimate. Always confirm whether the quoted figure is pure H₂ output or combined H₂+O₂ total output. In a correctly separated 2:1 system, pure H₂ is always two-thirds of the combined total. See how flow rate determines your dose.
Individual Dosage and Delivery
HERO Inhaler systems ship with a nasal cannula as standard; a facemask can also be used if preferred. Because delivery interface affects safe flow-rate calibration, our published per-person flow rates are calibrated for cannula delivery — the configuration most users actually use — targeting an average Fraction of Inspired Hydrogen (FiH2) of approximately 2%, consistent with nasal cannula guidance in the peer-reviewed physiological modeling of hydrogen inhalation (LeBaron et al., 2026). This target is set with deliberate margin below the 4% flammability threshold, accounting for the natural variation between average and instantaneous concentration that occurs with cannula delivery.
Every HERO Inhaler model — including our higher-capacity dual-user systems — delivers this same calibrated per-person flow, whether used by one person or two simultaneously. A higher total model number reflects capacity for more simultaneous users, not a higher dose to a single person.
Combined H2+O2 mode is also available on PEM/SPE systems like HERO Inhaler — a genuine advantage over alkaline (Brown's Gas) electrolysis, which is not appropriate for human inhalation at all due to contamination risk from its open liquid electrolyte. Because a stoichiometric H2+O2 mixture is more reactive than H2 diluted in ambient air, combined mode is delivered at a correspondingly lower, more conservative flow rate than pure H2 mode — engineered specifically for that mode's different safety profile, not a limitation.
| Model | Pure H2 flow (per person) | User capacity | Delivery |
|---|---|---|---|
| HERO Inhaler 900 | 600 ml/min | 1 users | Nasal cannula (facemask optional) |
| HERO Inhaler 1200 | 800 ml/min | 2* users — with the dual cannula accessory | Nasal cannula (facemask optional) |
| HERO Inhaler 1500 | 1,000 ml/min | 2 users | Nasal cannula (facemask optional) |
| HERO Inhaler 2000 | 1,200 ml/min | 2* users — with the dual cannula accessory | Nasal cannula (facemask optional) |
| HERO Inhaler Pro 3000 | 2,000 ml/min | 2 users | Nasal cannula (facemask optional) |
5. US support and FDA position
Confirm the seller can support US buyers directly — warranty claims, returns and pre-purchase questions. Also confirm the machine is marketed correctly under the FDA's General Wellness Policy for Low Risk Devices — not as a medical device, and with no disease or treatment claims. A seller making clinical claims about a hydrogen inhaler in the US market is operating outside the FDA's general wellness framework.
Why HERO machines are the best hydrogen inhalers in the USA.
Model-specific evidence. Report LH2025050017 covers HERO Inhaler 900, 1200, 1500, 2000 and Pro 3000. Do not extend those results to other models.
Check documents before purchasing. Ask for certification documents for the exact model. Hardware documentation is not evidence of medical or therapeutic status.
Honest flow-rate reporting. We publish pure H₂ output alongside combined H₂+O₂ output for every machine, so the number you compare is the number you breathe.
A complete range, one chassis philosophy. From the portable HERO Inhaler Go through to the dual-user HERO Inhaler Pro 3000, the range covers solo daily sessions, households, extended sessions and multi-user rooms — plus the HERO Dual 20 for buyers who want inhalation and hydrogen water from one machine.
Direct pricing with US delivery and duties included. No distributor margin, no subscription programme, no bundled content. You are paying for the machine.
All HERO products are marketed strictly as general wellness devices under the FDA's General Wellness Policy for Low Risk Devices. We make no disease or treatment claims.
Our two HERO inhaler lines
HERO Go Series — compact value range
Compact single-user inhalers with an EU/Japanese PEM cell. The most hydrogen output per dollar in our range.
HERO Inhaler Go 1000
+ Free diffusion rod- Pure H₂ (ml/min)
- 660
- Combined H₂ + O₂ (ml/min)
- 1,000
- Users
- 1
- Price
A$2,954.04A$2,754.04Black Friday price: A$200 off until 30 November
HERO Inhaler Go 1500
+ Free diffusion rod- Pure H₂ (ml/min)
- 1,000
- Combined H₂ + O₂ (ml/min)
- 1,500
- Users
- 1
- Price
A$3,732.18A$3,532.18Black Friday price: A$200 off until 30 November
HERO Inhaler Series — lab-verified premium range
Desktop inhalers with 99.991% hydrogen purity verified by an independent laboratory report, quiet operation, and a dual-user option on most models.
HERO Inhaler 900
+ Free diffusion rod- Pure H₂ (ml/min)
- 600
- Combined H₂ + O₂ (ml/min)
- 900
- Users
- 1
- Noise
- ≤ 45 dB at 1 m
- Price
A$4,145.75A$3,945.75Black Friday price: A$200 off until 30 November
HERO Inhaler 1200
+ Free diffusion rod- Pure H₂ (ml/min)
- 800
- Combined H₂ + O₂ (ml/min)
- 1,200
- Users
- 2 (with dual cannula accessory)
- Noise
- ≤ 40 dB at 1 m
- Price
A$4,745.75A$4,545.75Black Friday price: A$200 off until 30 November
HERO Inhaler 1500
+ Free diffusion rod- Pure H₂ (ml/min)
- 1,000
- Combined H₂ + O₂ (ml/min)
- 1,500
- Users
- 2
- Noise
- ≤ 44 dB at 1 m
- Price
A$5,345.75A$5,145.75Black Friday price: A$200 off until 30 November
HERO Inhaler 2000
+ Free diffusion rod- Pure H₂ (ml/min)
- 1,333
- Combined H₂ + O₂ (ml/min)
- 2,000
- Users
- 2 (with dual cannula accessory)
- Noise
- ≤ 48 dB at 1 m
- Price
A$6,145.75A$5,945.75Black Friday price: A$200 off until 30 November
HERO Inhaler Pro 3000
+ Free diffusion rod- Pure H₂ (ml/min)
- 2,000
- Combined H₂ + O₂ (ml/min)
- 3,000
- Users
- 2
- Noise
- ≤ 55 dB at 1 m on high (≤ 48 dB on low)
- Price
A$8,209.36A$8,009.36Black Friday price: A$200 off until 30 November
Figures are taken from each product page. Combined H₂ + O₂ is the total gas when both outlets are joined. General wellness devices; specifications describe hardware, not medical or therapeutic status.
The HERO lineup compared.
Comparison based on manufacturer-published engineering specifications.
Every machine we sell into the US, side by side, on the same criteria. Specifications, certifications and prices are read directly from our product catalogue, so the figures below always match the product pages. Prices are USD, direct, with delivery and duties included.
| Specification |  HERO Go Series · Portable entry + Free diffusion rod |  HERO Inhaler Series · Solo daily use + Free diffusion rod |  HERO Inhaler Series · Two users + Free diffusion rod |  HERO Inhaler Series · Extended sessions + Free diffusion rod |  HERO Inhaler Series · High-frequency use + Free diffusion rod |  Inhalation + H₂ water + Free diffusion rod |  HERO Inhaler Series · Flagship, two users + Free diffusion rod | RO water system — not an inhaler |
|---|---|---|---|---|---|---|---|---|
| Purity Level / Output Concentration | See model specifications; named-model lab report not established | See named-model laboratory documentation | See named-model laboratory documentation | See named-model laboratory documentation | See named-model laboratory documentation | See model specifications; named-model lab report not established | See named-model laboratory documentation | Low-TDS purified water for inhaler reservoirs |
| Membrane / Electrolysis Technology | PEM/SPE membrane electrolysis | PEM/SPE membrane electrolysis | PEM/SPE membrane electrolysis | PEM/SPE membrane electrolysis | PEM/SPE membrane electrolysis | PEM/SPE membrane electrolysis (inhalation + H₂ water) | PEM/SPE membrane electrolysis | Reverse-osmosis water purification — no hydrogen output |
| Certification | Documents available on request | FCC — see exact-model documentation | FCC — see exact-model documentation | FCC — see exact-model documentation | FCC — see exact-model documentation | Documents available on request | FCC — see exact-model documentation | Documents available on request |
| Price | $2,050 USD | $2,877 USD | $3,293.38 USD | $3,709.76 USD | $4,264.93 USD | from $2,695 USD | $5,697 USD | $1,750 USD |
| Availability | In stock — ships to the US | In stock — ships to the US | In stock — ships to the US | In stock — ships to the US | In stock — ships to the US | In stock — ships to the US | In stock — ships to the US | In stock — ships to the US |
| Pure H₂ Output | 660 ml/min (1,000 ml/min combined) | 600 ml/min (900 ml/min combined) | 800 ml/min (1,200 ml/min combined) | 1,000 ml/min (1,500 ml/min combined) | 1,333 ml/min (2,000 ml/min combined) | 667 / 1,000 / 1,333 ml/min + H₂ water | 2,000 ml/min (3,000 ml/min combined) | None — water system, not an inhaler |
| Customer Rating | No customer reviews yet | No customer reviews yet | ★ 5.0 / 5 (1 review) | No customer reviews yet | No customer reviews yet | No customer reviews yet | ★ 5.0 / 5 (1 review) | No customer reviews yet |
| FDA Position | General wellness device | General wellness device | General wellness device | General wellness device | General wellness device | General wellness device | General wellness device | General wellness device |
All specifications, certifications and USD prices are read from our product catalogue and match the individual product pages. HERO Purity 200-110 is a reverse-osmosis water system, not an inhalation device — it is included because water quality determines PEM stack service life. Certifications describe hardware and manufacturing, not medical or therapeutic status.
Our recommendations for US buyers.
Best first machine — HERO Inhaler Go Hydrogen Inhaler
The HERO Inhaler Go is the lowest-friction entry point into hydrogen inhalation for US buyers — 660 ml/min pure H₂ (1,000 ml/min combined H₂+O₂), simple one-button operation. At $2,050 USD with free delivery and duties included, review its published output and exact-model documents before purchasing. If FCC Part 15 Subpart B compliance is a priority for you, step up to the HERO Inhaler 1200.
$2,050 USD — View HERO Inhaler Go →
+ Free diffusion rodBest for daily home use (FCC Part 15 Subpart B compliant) — HERO Inhaler 1200 Hydrogen Inhaler
The HERO Inhaler 1200 has model-specific FCC documentation available for review. Electrical and emissions documentation concerns hardware, not medical or therapeutic status. The HERO Inhaler 1200 supports dual cannula use for two users simultaneously. At $3,293.38 USD direct with free delivery, compare its model-specific documentation and published output with the other models.
$3,293.38 USD — View HERO Inhaler 1200 →
+ Free diffusion rodBest for inhalation + hydrogen water — HERO Dual 20 Inhale + Drink All-in-One
The HERO Dual 20 produces both inhalation output (pure H₂ across three variants: 667 / 1,000 / 1,333 ml/min) and hydrogen-rich water (≥3,000 ppb) simultaneously from a single machine. For US buyers who want both delivery routes without two separate devices, the HERO Dual 20 is the direct-price solution, from $2,695 USD.
from $2,695 USD — View HERO Dual 20 →
+ Free diffusion rodBest for high-frequency use and clinics — HERO Inhaler 2000 Hydrogen Inhaler
The HERO Inhaler 2000 delivers 1,333 ml/min pure H₂ and 2,000 ml/min total output. If you need more, the HERO Inhaler Pro 3000 delivers 2,000 ml/min pure H₂ (3,000 ml/min combined) — the highest in the range. For US wellness clinics, practitioners or users running extended daily sessions, this is the machine. Direct pricing with free delivery and duties included, with model-specific documentation available for review.
$4,264.93 USD — View HERO Inhaler 2000 →
+ Free diffusion rodBest for multi-user rooms — HERO Inhaler Pro 3000 Hydrogen Inhalation Machine
The HERO Inhaler Pro 3000 is the flagship of the range: 2,000 ml/min pure H₂ (3,000 ml/min combined H₂+O₂) across two independent outlets, so two people can run a session at once. Ask for its model-specific FCC and laboratory documents. Intermediate flow tiers are available if the Pro is more machine than you need — the HERO Inhaler 900 and HERO Inhaler 1500 sit between the entry and studio tiers on the same chassis.
$5,697 USD — View HERO Inhaler Pro 3000 →
+ Free diffusion rodWater input for any inhaler — HERO Purity 200-110
Every PEM inhaler in this comparison depends on the water you feed it. The HERO Purity 200-110 is a reverse-osmosis water system that supplies consistently low-TDS water for inhaler reservoirs, which protects the membrane stack over the machine's service life. It is not an inhalation device and produces no hydrogen gas for breathing — it is included here because water quality is the single most common cause of premature PEM stack failure in US households.
$1,750 USD — View HERO Purity 200-110 →
Hydrogen System Decision Tree
Step 1 — What routine do you want?
- Seated, structured → Inhalation
- If inhalation → How many people?
- One person → HERO 900 / 1200
- Two people → HERO 1500 / 1800 / Pro 3000
- Want flexibility? → HERO 1200 or HERO 1500
- Warm-water relaxation → Bathing
- If bathing → How often?
- 1–3× weekly → Standard capacity
- Daily/shared → Higher capacity
- Spa/clinic → Premium capacity
- If both → Combine systems
- Inhalation model based on user count
- Bath model based on frequency
A note on FDA position for US buyers.
Hydrogen inhalers are not FDA-approved medical devices. They are marketed as general wellness devices under the FDA's General Wellness Policy for Low Risk Devices.
This means:
- No disease or treatment claims can legally be made
- The machines do not require FDA clearance or approval to be sold in the US
- Sellers making disease-specific claims about hydrogen inhalers are operating outside the FDA framework
All Hydrogen Machines products are marketed strictly as general wellness devices. We make no claim to diagnose, treat, cure or prevent any disease or medical condition. We encourage US buyers to be cautious of any seller making clinical or disease-specific claims about hydrogen inhalers — these are not substantiated and may indicate the seller is operating outside regulatory guidelines.
Hydrogen gas is recognised as Generally Recognized As Safe (GRAS) by the US FDA.
What to avoid.
Amazon listings without certification documentation — machines sold through Amazon.com with compliance logos but no published certificate documents. Specifications on these listings are frequently unverified. Price alone is not a reliable guide.
Alkaline electrolysis machines — any machine requiring potassium hydroxide or sodium hydroxide as an electrolyte is using alkaline electrolysis. Not appropriate for daily consumer inhalation regardless of other claims.
Sellers making disease or treatment claims — any US seller stating their hydrogen inhaler treats, cures or prevents a specific condition is making claims outside the FDA General Wellness framework. This is a red flag for both regulatory compliance and credibility.
Subscription bundles without published hardware specs — premium US wellness brands that bundle machines with monthly content subscriptions frequently do not publish certified hardware specifications. You are paying for the programme, not the machine.
Frequently asked questions
What's the difference between PEM/SPE and alkaline hydrogen inhalers?
PEM/SPE and alkaline electrolysis use different cell designs and electrolytes. Check the chosen model's documentation rather than assuming its purity from the technology name.
What purity figure should a hydrogen inhaler publish?
Request a report covering the exact model and measured gas outlet. A technology label is not evidence of a particular purity figure.
What shipping terms apply to HERO inhalers in the USA?
USA delivery includes free shipping with duties paid, no import duties or customs fees on arrival, and up to 14 business days from order. Other destinations follow the country-specific shipping policy.
Is FCC certification required for a hydrogen inhaler sold in the US?
Request the exact model's FCC documentation and check its scope. Electrical and emissions documentation describes hardware, not medical approval or therapeutic status.
How is flow rate measured, and what should I check?
Flow rate should be a certified figure in ml/min, not a marketing estimate. Always confirm whether the quoted number is pure H₂ output or combined H₂+O₂ total output — in a correctly separated 2:1 system, pure H₂ is two-thirds of the combined total.
Are hydrogen inhalers FDA-approved medical devices?
No. Hydrogen inhalers are marketed as general wellness devices under the FDA's General Wellness Policy for Low Risk Devices. They do not require FDA clearance or approval to be sold in the US, and no disease or treatment claims can legally be made about them.
What should I avoid when buying a hydrogen inhaler in the US?
Avoid Amazon listings without published certification documentation, alkaline electrolysis machines, sellers making disease or treatment claims, and subscription bundles that don't publish certified hardware specifications.
FCC Part 15 Subpart B — independent laboratory testing
Request the exact model’s FCC documentation and check which hardware and emissions tests it covers.
The five named models with FCC documentation are: HERO Inhaler 900, HERO Inhaler 1200, HERO Inhaler 1500, HERO Inhaler 2000 and HERO Inhaler Pro 3000. Certificate LST250598095F. Full 21-page test report downloadable at certifications →.
Ask any hydrogen inhaler seller for their equivalent documentation before purchasing.
Read more.
This page is editorial content. Competitor specifications are sourced from publicly published product pages and are accurate to the best of our knowledge at the date of publication. Hydrogen Machines products are general wellness devices marketed under the FDA's General Wellness Policy for Low Risk Devices. Not medical devices. No claim is made to diagnose, treat, cure, or prevent any disease or medical condition.
