Updated October 2026. List prices and specifications are as published by each seller at the time of writing and may change.
How much does a hydrogen inhalation generator cost?
Most machines we compare list between roughly $2,400 and $7,000. Price alone says little. What matters is how much hydrogen (not total gas) a machine delivers, whether it separates hydrogen from oxygen, whether output is adjustable, and what the warranty and return terms cover. Revive’s HYD line lists at $3,299 (HYD-1500), $3,599 (HYD-1800), and $4,299 (HYD-3000).
What does the price actually buy?
Five differences explain most of the spread between machines:
- Hydrogen output, not total gas. Some machines advertise total gas output. Mixed-gas (lye-based) machines produce roughly two-thirds hydrogen, so a machine rated at 1,000 mL/min of total gas delivers about 660 mL/min of hydrogen.
- Separated or unseparated gas. PEM machines generate hydrogen and oxygen separately. Lye-based machines deliver them as a single mixed stream.
- Adjustability. Some machines run at one fixed output. Revive’s HYD line has three selectable flow settings on every model.
- Electrolyte and upkeep. PEM machines run on distilled water only. Lye-based machines use a sodium hydroxide electrolyte that the owner mixes and periodically replaces.
- Warranty and return terms. Length matters less than scope: read what is excluded, and what a return costs even when nothing is wrong.
How do the machines compare on price and hydrogen output?
| Machine | List price | Hydrogen output | Gas | Electrolyte |
|---|---|---|---|---|
| Promolife H2 System | $2,395 | 567 mL/min (of 850 mL/min total) | Unseparated | Lye (NaOH) |
| PureONE | $2,900 | ~555 mL/min (of 833 mL/min total) | Unseparated | Lye (NaOH) |
| AquaCure AC60 | $2,999 ($3,399 dual-voltage) | ~660 mL/min (of ~1,000 mL/min total) | Unseparated | Lye (NaOH) |
| Revive HYD-1500 | $3,299 | 600 / 900 / 1,000 mL/min (adjustable) | Separated | Distilled water only |
| Revive HYD-1800 | $3,599 | Up to 1,200 mL/min (adjustable) | Separated | Distilled water only |
| Revive HYD-3000 | $4,299 | Up to 2,000 mL/min across both hydrogen ports; 500 / 750 / 1,000 mL/min on a single port | Separated | Distilled water only |
At the higher end, HLTH’s machine lists at $7,000 (commonly sold at $5,500 through webinar discounts) with a 600 mL/min hydrogen output and a control panel that offers a timer but no flow selector. Our HLTH comparison covers the specifications and return terms in detail.
Is higher hydrogen output always better?
No. What matters physiologically is the fraction of inspired hydrogen (FiH₂): the share of hydrogen in the air you actually breathe. A 2026 respiratory-physiology modeling paper (LeBaron et al.) supports a practical window of about 1-4% FiH₂. It also finds that flow rate alone cannot predict FiH₂, because the result depends on your inspiratory flow, nasal patency, breathing pattern, and elevation. Above about 4%, hydrogen in air becomes a flammability concern.
Using the paper’s practical rule (hydrogen flow divided by a 30 L/min resting inspiratory flow), here is how hydrogen flow translates to estimated FiH₂ for a calm adult breathing through the nose:
| Hydrogen delivered | Estimated FiH₂ at rest |
|---|---|
| 500 mL/min | ~1.7% |
| 600 mL/min | ~2.0% |
| 750 mL/min | ~2.5% |
| 900 mL/min | ~3.0% |
| 1,000 mL/min | ~3.3% |
| 1,200 mL/min | ~4.0% |
| 1,500 mL/min | ~5.0% |
The takeaway for buyers: more output is not automatically better, and adjustability matters in both directions. You want enough margin to stay in range when conditions are unfavorable, and the ability to turn down so you stay below the ceiling. See our full explanation in Hydrogen Inhaler Flow Rate: Why It Matters.
What does ownership cost beyond the purchase price?
- Warranty. Revive’s HYD line carries a 3-year limited warranty from Revive Hydrogen LLC. Scope, including exclusions for water-quality damage and consumables, is on the warranty page.
- Service life. The manufacturer, Olive, states an electrolyzer life of 8,000-10,000 hours. This is a manufacturer figure, not an independently tested one.
- Routine upkeep. Distilled water (TDS 5 or less), cannulas as needed, and a drain-and-refill of the 6-liter tank every 60 hours of use or monthly. There is no electrolyte to mix or dispose of.
- Returns. Revive offers a 30-day return window from delivery, and you are encouraged to use the machine during it. Full terms are on the shipping and returns page.
Frequently asked questions
Why do hydrogen inhalation machines vary so much in price?
Differences in electrolysis technology, how much of the output is actually hydrogen, adjustability, build and certification, warranty scope, and the seller’s sales and marketing model all contribute. Compare cost per mL/min of hydrogen, not the sticker price.
Is a lower-priced machine a poor choice?
Not necessarily. Lye-based machines carry lower sticker prices, and some weigh less and draw less power than PEM machines. The trade-offs are an unseparated gas stream and an electrolyte you mix and handle yourself. Our PEM vs. lye comparison lays them out.
What should I ask before buying a hydrogen generator?
Ask five things: Does it separate hydrogen from oxygen? How many mL/min of hydrogen, not total gas? What is in the electrolyte besides water? How long is the warranty and what does it exclude? What does a return cost if nothing is wrong? Our evaluation guide goes deeper.
How pure is the hydrogen from a PEM generator?
Independent laboratory testing (QTT, June 2023) measured 99.992% hydrogen purity on the generator platform used in Revive’s HYD line. See what 99.99% purity means for context.
Compare the Revive HYD models
Revive Hydrogen, based in Dry Ridge, Kentucky, sells the HYD-1500, HYD-1800, and HYD-3000 generators, manufactured by Olive Electronic Technology in Zhengzhou, China. Each has three selectable flow settings, a 6-liter tank with integrated UV-C water treatment, and a selectable 1-8 hour timer. See the full model comparison or the generator page, or book a call to talk through which fits.
Source: LeBaron TW, Ohno K, Salomez-Ihl C, et al. Respiratory-physiology modeling of therapeutic hydrogen inhalation: defining the fraction of inspired hydrogen (FiH₂) and flow-rate requirements. Respir Res. 2026;27:259. doi:10.1186/s12931-026-03664-9
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
