Hydrogen bath machine safety

The unit plugs into a standard wall outlet on a residential bathroom circuit. Confirm the outlet is GFCI/RCD-protected (the residual-current breaker that is standard on modern bathroom circuits). Place the chassis on a stable, dry surface; route the power lead away from splash zones and the tub edge.

Never submerge the chassis. Never place it inside the tub. Only the dissolution head is rated for water contact. Use distilled water in the source reservoir; tap water shortens membrane life and can leave conductive residues.

Start the machine before entering the bath and let it reach working concentration (typically 10–20 minutes). Sessions are usually 20–30 minutes. Bathroom ventilation should be normal — an extractor fan or open door is appropriate. H₂ disperses upward and away from the user.

Hydrogen becomes flammable in air above ~4% concentration. In an open bathroom with normal ventilation, the working concentration in air remains well below that threshold by a large margin.

Drain the source reservoir if the unit will not be used for more than a week. Store on a dry surface, ideally in the same bathroom — the unit does not need to be moved between sessions.

A clear bench or shelf beside the tub, a nearby outlet, and a routing path for the dissolution hose that does not cross the tub edge in a tripping zone. No dedicated circuit, no plumbing modification, no installer required for a residential install.