Key is I think they all have PEM and SPE to generate >1ppm H2 separating out chlorine and nitrate waste water. I think those without SPE have strong chlorine taste on some other portable units. It's nice to be able to screw on a plastic water bottle upside down of any size. Parkinson trial drank one liter of 1.2 ppm water per day.
Supposed to be good for arthritis psoriasis Parkinsons GI issues liver inflammation etc... Unproven but enough evidence that it's safe and cheap enough to try.
Pretty good results in psoriasis trial by bathing in the stuff for 15 minutes every 3 days x18 times only. Would be thrilled if prurisol got Pasi75 of 30 percent like they saw in moderate to severe Psoriasis (small numbers). But would.not be easy to generate so much water with little portable unit.
If it works may invest in larger unit with better filtration and larger and longer production capacity. Hydrogen bubbles out over time too.
There are other ways to generate hydrogen water via magnesium chemical reaction with Mg sticks or running water over slow release Mg.
(Please excuse typos .. On phone)
Good luck to your sibling. PD is a difficult disease. I have done various research in PD detection and neuroprotection genetics etc.. and am involved with surgical treatment for PD.
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