What determines session length.
Three variables: the flow rate of your machine (ml/min of pure H₂), the intended use pattern, and personal routine. Higher flow rates saturate the bloodstream faster and shorten the required session. A lower flow rate machine requires a longer session to deliver the same total exposure.
Common session durations.
Published research and consumer usage cluster around three session lengths: 20 minutes, 30 minutes, and 60 minutes. None of these are medical recommendations — they are the common windows reported across the literature and consumer practice.
How flow rate affects session.
- Higher ml/min = faster bloodstream saturation = shorter session possible.
- Lower ml/min = slower saturation = longer session recommended to reach the same exposure.
Session frequency.
Once daily is the dominant pattern. Some users run two shorter sessions per day. Some users run sessions every second or third day. There is no clinically established frequency for general wellness use.
Morning vs evening use.
Both are common. There is no clinically established superior time of day. Choose the slot that fits your routine and is easiest to keep consistent.
Machine-specific session guidance.
- 600 ml/min machines (HERO Inhaler 900): 30–60 minutes typical.
- 800–1,200 ml/min machines (HERO Inhaler 1200): 20–45 minutes typical.
- 1,800 ml/min+ machines: 20–30 minutes typical.
Building a routine.
Start with a shorter session — 20 or 30 minutes — at your machine's standard flow rate. Run the same time of day for two weeks. Adjust duration based on personal preference. For a full first-time setup walk-through see hydrogen inhalation for beginners.