Total output vs pure hydrogen output

Inhalation machines that split water by electrolysis produce two gases at once: hydrogen (H₂) and oxygen (O₂). Output is measured in millilitres per minute (ml/min), and a specification can quote either the combined flow of both gases or the hydrogen alone. The two numbers are not interchangeable.

Two figures, two meanings

• Total output — the combined flow of hydrogen and oxygen (H₂ + O₂) leaving the machine.
• Pure hydrogen output — the hydrogen-only flow available when you connect to an H2 port.

Water splits into two parts hydrogen to one part oxygen, so pure hydrogen output is about two-thirds of total output. A total figure presented as "hydrogen output" overstates the hydrogen delivered by roughly half again.

H6 Pro™ and H8 Pro™ figures

• H6 Pro™ (QY-F6000): 6,000 ml/min total output (H₂ + O₂); up to 4,000 ml/min pure H₂.
• H8 Pro™ (QY-F8400): 8,400 ml/min total output (H₂ + O₂); up to 5,600 ml/min pure H₂.
• Both: 1,200 W, up to 3 simultaneous users.

Which figure applies to your session

Connecting to an H2 port gives hydrogen only — the pure H₂ figure is the relevant one. Fitting the connector across a set of ports gives hydrogen and oxygen together — the total figure describes that combined flow. When several people share one machine on hydrogen only, they share the pure H₂ flow.

Comparing machines fairly

Compare pure H₂ with pure H₂, and total with total. If a specification gives a single number without saying which, ask the seller whether it is H₂ only or H₂ + O₂ combined.