Preliminary findings across heterogeneous studies, with calls for larger and more rigorous trials. Not an exact-model Hhuhu trial.
Velta Technology
Hydrogen
Measure the hydrogen that is dissolved.
Hydrogen water contains molecular hydrogen, H₂. Hhuhu generates and disperses hydrogen into compatible purified water. Concentration, bubbles and developing research answer different questions.
01 · Hydrogen
Dissolved H₂ · separate from bubbles
Some hydrogen dissolves in the water; some is held in suspended bubbles. Hhuhu’s temporary milky cloud is created by micro- and nanobubbles.
Visible cloudiness and particle counts are not substitutes for a dissolved-H₂ measurement at the point of drinking. They do not establish absorption, dose or health benefit.
02 · Hydrogen
Concentration · check what was measured
For dissolved hydrogen in dilute water, 1 mg/L is approximately 1 ppm. Record the method, sample temperature, time after generation and whether the result describes dissolved H₂ or includes bubbles.
The manufacturer’s over-10,000 ppm Hhuhu headline combines dissolved and bubble-form hydrogen. Do not compare it directly with a dissolved-only concentration. An ORP reading is not a direct dissolved-H₂ measurement.
03 · Hydrogen
Hydrogen water · start with a suitable source
Hhuhu is a dedicated 3 L countertop hydrogen water machine. Supply compatible purified, distilled or RO water with TDS ≤5.
It does not filter tap water, heat it, chill it or carbonate it. Allow space behind the machine to remove the tank, and clean the tank every two weeks.
04 · Hydrogen
Research · promising questions, limited conclusions
Published human studies investigate hydrogen water across different participants, concentrations, durations and outcomes. Early findings do not establish a benefit from a particular retail machine.
The 2024 review below calls for larger samples and more rigorous methods. Read the study population, delivery route and measured endpoint before interpreting a result. Hhuhu is not a medical treatment.
Sources & documents
Follow the evidence.
General technology guidance, manufacturer specifications and exact product testing have different scopes.
Why ORP should not be used to estimate or compare dissolved-H₂ concentration.
Product operation and manufacturer figures, kept separate from clinical research.