HERO Dual 20 supports 2 users for inhalation and also produces hydrogen-rich drinking water.

The three tiers differ only in flow rate: HERO Dual 20-1000 delivers 667 ml/min pure H₂ (1,000 ml/min combined H₂ + O₂), HERO Dual 20-1500 delivers 1,000 ml/min pure H₂ (1,500 ml/min combined, the default), and HERO Dual 20-2000 delivers 1,333 ml/min pure H₂ (2,000 ml/min combined). Hydrogen water output is ≥3,000 ppb on every tier. Purity, technology, and every other spec are identical across all three — you're choosing session speed, not gas quality.

The HERO Dual 20 runs two separate protocols from the same PEM electrolysis stack: Hydrogen Enjoyment for inhalation via nasal cannula, and Hydrogen Water for on-demand drinking water at ≥3,000 ppb dissolved hydrogen. You switch between modes from the smart touch display — no need for two separate machines.

Distilled or deionized water only, with a resistivity greater than 2 MΩ·cm. Ordinary tap water will damage the electrolysis cell over time and voids the warranty.

model-specific gas composition. Hydrogen and oxygen are separated at the membrane, so you can breathe hydrogen alone, the combined 2:1 hydrogen-oxygen flow, or split the machine between two users with the dual cannula accessory.

No. The HERO Dual 20 is a general wellness device, not a medical device. No medical registration or approval is claimed. No disease or treatment claims are made about it.

The stack is rated to 10,000 hours of continuous operation — roughly 13.6 years at 2 hours of daily use, or about 27 years at 1 hour a day.

All HERO inhalation systems are built for continuous operation, but flow rate determines how many clients you can turn around. HERO Inhaler 900 and 1200 suit single-room practices, 1500 and 2000 suit busier rooms or two users on a dual cannula, and HERO Inhaler Pro 3000 is the choice where two to three concurrent users or all-day back-to-back sessions are the norm.

PEM electrolysis stacks are fed water directly. RO-pure or distilled water (resistivity greater than 2 MΩ·cm) contains no dissolved minerals, so nothing is left behind on the membrane. Tap or filtered mains water deposits scale that reduces output stability, shortens stack life and voids warranty cover — which is why professional rooms keep a dedicated RO supply on site.

The 7-stage separation train removes entrained moisture and electrolyte carry-over from the gas stream after the membrane, so hydrogen leaves the machine dry. Dry gas means no liquid is drawn back through the delivery path, the internal water loop stays clean, and the membrane is not exposed to contaminants recirculating through the system during long duty cycles.

HERO Inhaler 900 and 1200 suit single-room practices, HERO Inhaler 1500 and 1800 suit busier rooms or two users on a dual cannula, and HERO Inhaler Pro 3000 is specified where two to three concurrent users or all-day back-to-back sessions are normal. Purity and PEM technology are identical across the range — flow rate is what changes.

Practitioner rooms keep a dedicated RO or distilled water supply on site, with resistivity greater than 2 MΩ·cm, so nothing is deposited on the PEM membrane. The HERO Purity 200-110 RO system removes the distilled-water routine, and on the gas side purity figures are manufacturer specifications unless the exact product page identifies an applicable laboratory report.

Inhalation and bath run as separate machines used in sequence, not one unit switching modes. A common professional pattern is a 20–40 minute hydrogen bath session followed by an inhalation session in the same appointment slot, so neither system becomes a bottleneck during turnaround and both draw on the same RO-pure water standard.

PEM/SPE electrolysis stacks are fed water directly, so whatever is dissolved in that water ends up at the membrane. RO-pure or distilled water (resistivity greater than 2 MΩ·cm) carries no minerals to deposit, which is what keeps output stable across back-to-back client sessions. Mains or filtered tap water leaves scale on the membrane, reduces output stability and voids warranty cover.

Dissolved minerals and ions foul the catalyst-coated membrane surface, progressively blocking active area. The practical result is contamination-driven output drift: the same flow setting delivers less hydrogen over time, cell voltage rises, and the stack runs hotter. Feeding only RO-pure water avoids that mechanism entirely and is the single largest factor in system lifespan.

On the feedwater side: RO-pure or distilled water above 2 MΩ·cm resistivity, refilled from a labelled container, with the reservoir drained before extended shutdowns. On the gas side: purity figures are manufacturer specifications unless the exact product page identifies an applicable laboratory report, with 7-stage separation delivering dry hydrogen so no moisture or electrolyte carry-over returns through the delivery path.

Purity evidence is model-specific. Report LH2025050017 covers HERO Inhaler 900, 1200, 1500, 2000 and Pro 3000. Ask before purchasing for the exact model's documentation.

Connect it to the hydrogen outlet with the supplied tubing, place it in a glass of drinking water and run the machine for a few minutes. Use it in a ventilated room, as with inhalation.