We make the Ocemida Nexis, so check our work. Every figure on this page is tied to a named lab and a report number, and where a brand's report is not public we say so. Figures last checked November 10, 2026.
Same bottle, two clocks
vs
20 minwhere many headline numbers come from
A PPB number means little until you know how many minutes produced it. Here is every major bottle on the same clock.
8,740 PPBHighest published 10-minute result: Ocemida Nexis
3 of 9Bottles that clear 6,000 PPB in 10 minutes
+24% to +78%What a second 10 minutes adds, in the same lab reports
PPB = parts per billion of dissolved hydrogen. 1,000 PPB = 1 PPM = 1 mg/L.
Why 10 minutes is the fair comparison
Dissolved hydrogen builds up while a bottle runs. The longer the cycle, the higher the number, until the pressure valve opens or the water is saturated. (New to this? Start with are hydrogen water bottles worth it.)
Every PPB claim has three parts. Most people only read the first.
8,000 PPBThe number that gets repeated
20 minThe part that gets dropped
Report IDThe proof you can ask for
An example claim, not a specific product.
Ten minutes is the one cycle length that nearly every pressurized hydrogen bottle has built in, and it is the cycle most labs test. It is the only place where you can set one brand's report beside another's and compare like with like. On most models it is also what a single press of the button gives you.
The 10-minute ranking
Dissolved hydrogen after one 10-minute cycle
Lab result6,000 PPB line · scale 0 to 10,000 PPB
PUREPEBRIX H80006,590 PPB
Dr. Water Hydrator Pro5,140 PPB
PIURIFY Hydrogenator 17 oz4,240 PPB
PIURIFY Hydrogenator 10 oz4,090 PPB
Three bottles clear 6,000 PPB in 10 minutes. The other six land between 4,090 and 5,420 PPB.
Figures as published by each brand from a named lab. Report numbers are on each bottle's card below.
What 10 more minutes adds
Four bottles have a lab figure at both 10 and 20 minutes. The dark part of each bar is what you get in the first 10 minutes. The gold part is what the second 10 minutes adds.
10 minutes vs 20 minutes, same bottle, same lab
First 10 minutesAdded by minutes 11 to 20
PIURIFY Hydrogenator 17 oz+48%
Every 20-minute figure is real. It just costs twice the wait and about twice the battery. Compare bottles on the dark part of the bar.
Scale 0 to 10,000 PPB. "Stacked" means two 10-minute cycles run back to back with the cap kept closed.
Every bottle, with its report ID
1. Ocemida Nexis280 mL (9.5 oz)
10 min8,740 PPB4,590 PPB at 5 min
20 minNot testedCycles are 5 and 10 min
H2 Analytics, gas chromatography · H2AR-260616-1
Second lab: H2HUBB, Unisense microsensor, 7,700 PPB at 10 min (January 19, 2026)
See the Ocemida Nexis · Open both lab reports
2. PUREPEBRIX H8000296 mL (10 oz) stated
10 min6,590 PPB4,340 PPB at 5 min
20 min8,160 PPB7,430 PPB at 15 min
H2 Analytics · H2AR-250515-2 · May 15, 2025
Figures from the extract the brand publishes. We did not find the full report to download.
Full comparison: Nexis vs PUREPEBRIX H8000
3. Echo Flask350 mL (12 oz)
10 min6,070 PPB
20 min8,250 PPBBuilt-in 20-min cycle
H2 Analytics, gas chromatography · H2AR-250116-1 · January 16, 2025
Distilled water, about 350 mL fill.
4. EVOLV H2GO230 mL (7.8 oz)
10 min5,420 PPB2,870 PPB at 5 min
20 minNot testedCycles are 5 and 10 min
H2 Analytics · H2AR-240628-1
Second lab: H2HUBB, about 4,550 PPB at 10 min (June 2024)
Full comparison: Nexis vs EVOLV H2GO
5. Dr. Water Hydrator ProManufacturer report
10 min5,140 PPB3,440 PPB at 5 min
20 minNot tested
H2 Analytics · 22052801
A 2022 report issued to the bottle's manufacturer for model H2-2, published by the brand as a manufacturer certification.
6. PIURIFY Flask350 mL (12 oz)
10 min4,860 PPB
20 min8,630 PPBBuilt-in 20-min cycle
H2 Analytics · H2AR-250918-1
Figures as published by the brand.
7. Echo Go+Earlier Echo model
10 min4,590 PPB2,430 PPB at 5 min
20 minNot tested
H2 Analytics · report dated April 20, 2023
Retest after one year of use: H2AR-241125-1, 4,590 PPB at 10 min
8. PIURIFY Hydrogenator 17 oz500 mL (17 oz)
10 min4,240 PPB2,540 PPB at 5 min
20 min6,290 PPBTwo stacked cycles
H2 Analytics, gas chromatography · H2AR-251025-1
9,970 PPB after four stacked cycles (40 min).
9. PIURIFY Hydrogenator 10 oz280 mL (10 oz)
10 min4,090 PPB2,580 PPB at 5 min
20 minNo figure published6,300 PPB at 30 min
H2 Analytics, gas chromatography · H2AR-240821-1 · August 21, 2024
Full comparison: Nexis vs PIURIFY Hydrogenator
See all nine as a plain table
8,740 PPB in one 10-minute cycle The Ocemida Nexis, tested by two independent labs, with a lifetime limited warranty.
See the Nexis · Read the warranty
Advertised, but no 10-minute lab report found
These bottles advertise a concentration, but we could not find a third-party report showing a 10-minute measurement for the model on sale. If one exists, send it to us and we will add it.
Dr. Water Hydrator Max"Up to 10,000 PPB"No lab report published. The brand describes the figure as measured on the device.
Nixcer Pro"Up to 8,000 PPB"Self-reported. No third-party report found.
IonBottles ATOM"Up to 5,000 PPB"No cycle time stated. Batch data on request, no published report found.
How to read a PPB claim in 30 seconds
1
Find the minutes. If the number has no cycle time beside it, you cannot compare it with anything.
2
One cycle or several? A built-in 20-minute program and two stacked 10-minute cycles both cost you 20 minutes. Stacked results also depend on never opening the cap in between.
3
Look for the report number. A named lab and a report ID mean you can ask for the document. A badge alone does not.
4
Compare at 10 minutes. Put every bottle on the same clock before you compare price.
5
Remember the bottle size. What you drink is concentration times volume. A 500 mL (17 oz) bottle at a lower PPB can deliver as much hydrogen as a 280 mL (9.5 oz) bottle at a higher one. Our hydrogen dose calculator does the maths.
Longer and stacked cycles are legitimate when they are labelled. Echo, PIURIFY and PUREPEBRIX all publish the minutes next to their figures somewhere on their sites. The problem starts when the number travels without the minutes, into ad titles, search results and roundup lists.
How we built this page, and its limits
We read each brand's own product pages, support pages and published lab documents, and recorded the dissolved hydrogen figure at 10 and at 20 minutes with the lab name and report number.
Each brand ran its own testNo lab has tested all of these bottles side by side on the same day. Fill volume, water type and sample timing differ.
Lab numbers are a best caseMost reports use distilled water and sample the moment the cap comes off. At home, every bottle here will read lower, ours included.
Methods differGas chromatography and microsensor readings do not match exactly. That is why the Nexis is listed at both 8,740 and 7,700 PPB, not an average.
Our own reports are on the Ocemida lab reports page. For how these numbers fit into a buying decision, see our ranking of the best hydrogen water bottles.
Common questions
Which hydrogen water bottle has the highest PPB in 10 minutes?
Of the published lab reports we found, the Ocemida Nexis has the highest 10-minute result: 8,740 PPB, measured by H2 Analytics using gas chromatography (report H2AR-260616-1). The PUREPEBRIX H8000 follows at 6,590 PPB and the Echo Flask at 6,070 PPB.
Why do some bottles advertise over 8,000 PPB but measure less in 10 minutes?
Because the advertised number often comes from a longer run. The Echo Flask measures 6,070 PPB at 10 minutes and 8,250 PPB at 20 minutes. The PIURIFY Flask measures 4,860 PPB at 10 minutes and 8,630 PPB at 20 minutes. The PUREPEBRIX H8000 measures 6,590 PPB at 10 minutes and 8,160 PPB at 20 minutes. Each figure is real. They describe different waiting times.
Is a 20-minute cycle worth it?
It adds hydrogen: 24% to 78% more in the reports above. It also takes twice as long and uses about twice the battery. If you want a high concentration from one short press, compare bottles on their 10-minute figure.
What is a stacked cycle?
Running the bottle's program again without opening the cap, so pressure and concentration keep building. PIURIFY's 6,290 PPB (17 oz, 20 minutes) and 9,970 PPB (17 oz, 40 minutes) figures are stacked-cycle results, and the brand labels them that way.
How much PPB do I need?
Water holds about 1,600 PPB of hydrogen at normal pressure, and every bottle with a published report here clears that several times over. Some hydrogen is lost when you open the cap, pour and drink, which is why we look for at least 6,000 PPB in one 10-minute cycle. Research on hydrogen water is still early, and no concentration is proven to treat or prevent any disease. Our science page summarizes the studies.
How can I check a brand's number myself?
Ask the brand for the lab report behind the figure and check the cycle time printed in it. At home, a reagent drop kit or a dissolved hydrogen meter can tell you whether a bottle is working, but consumer meters often top out near 1,600 PPB and cannot confirm high lab figures. If your own bottle seems weak, the bottle troubleshooter walks through the usual causes.
Keep reading
Sources
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Ocemida Nexis: H2 Analytics Laboratory Report H2AR-260616-1 (static headspace gas chromatography); H2HUBB test report, January 19, 2026 (Unisense microsensor). Both on the Ocemida lab reports page.
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PUREPEBRIX H8000: H2 Analytics Laboratory Report H2AR-250515-2, May 15, 2025, as reproduced on the brand's product page, knowledge base and Amazon listing (5, 10, 15 and 20-minute figures).
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Echo Flask: H2 Analytics Laboratory Report H2AR-250116-1, January 16, 2025, published on Echo's support site (10 and 20-minute cycles, three runs each).
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Echo Go+: H2 Analytics report dated April 20, 2023, and retest H2AR-241125-1, November 25, 2024, published on Echo's support site.
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EVOLV H2GO: H2 Analytics Laboratory Report H2AR-240628-1; H2HUBB Official Test Report (PDF), June 2024.
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PIURIFY Hydrogenator 10 oz: H2 Analytics Laboratory Report H2AR-240821-1 (PDF), August 21, 2024; 30-minute stacked figure as stated by the brand.
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PIURIFY Hydrogenator 17 oz: H2 Analytics Laboratory Report H2AR-251025-1 (PDF); stacked-cycle figures as stated by the brand.
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PIURIFY Flask: H2 Analytics Laboratory Report H2AR-250918-1; 10 and 20-minute figures as published on the brand's product pages.
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Dr. Water Hydrator Pro: H2 Analytics Laboratory Report 22052801 (PDF), issued to the manufacturer for model H2-2, bottle received May 26, 2022.
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Dr. Water Hydrator Max, HydroH Pro, Nixcer Pro, IonBottles ATOM: each brand's own product pages, read between August and November 2026.
Prices, models and published reports change. If a figure here no longer matches its source, tell us and we will correct it. This article is for general information and is not medical advice. Hydrogen water bottles are not intended to diagnose, treat, cure or prevent any disease.
