Does the QY-A1800 produce 50% more hydrogen than the QY-A1200?

Yes — pure H₂ flow steps from 800 ml/min on the QY-A1200 to 1,200 ml/min on the QY-A1800, with total gas (H₂+O₂) rising from 1,200 to 1,800 ml/min.

Is the QY-A1800 a multi-user machine?

It includes a Y connector for two-user sessions. For three independent outlets and multi-user clinical use, step up to the QY-A3000.

The QY-A1200 at ≤40 dB — the quietest machine in the range. The QY-A1800 is louder at ≤48 dB because it packs higher output into the same chassis.

Can I use both in the same accessory ecosystem?

Yes — cannulas, Y connectors and humidifier tubes are interchangeable across the QY-A series.

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Internal product comparison

QY-A1200 vs QY-A1800

Quiet daily-protocol QY-A1200 vs the higher-flow QY-A1800 built for studios and serious solo protocols.

Side by side

Specifications at a glance

	QY-A1200	QY-A1800
Total gas (H₂ + O₂)	1,200 ml/min	1,800 ml/min
Pure H₂ stream	800 ml/min	1,200 ml/min
Pure O₂ stream	400 ml/min	600 ml/min
Purity	99.99%	99.99%
Stack	Twin SPE/PEM	SPE/PEM (higher-output cell)
Noise (1 m)	≤ 40 dB (quietest)	≤ 48 dB
Power	380 W	530 W
Weight	16 kg	16 kg
Dimensions	260 × 340 × 420 mm	260 × 340 × 420 mm
Multi-user (Y connector)	Included	Included
Display	Smart touch (flow, timer, TDS, temp)	Front panel + timer
Mobility	Casters + handle	Side handle
Certifications	CE, FCC, RoHS, ISO9001, ISO13485	CE, FCC, RoHS, ISO9001, ISO13485

Specifications describe hardware and engineering parameters. They are not medical or therapeutic statements.

Where they meet — and where they part

Key similarities

Same SPE/PEM technology at 99.99% purity
Y connector included for two-user or combined H₂+O₂ delivery
Same certification stack and 12-month warranty
Both run on standard household power

Key differences

Throughput: 1,200 vs 1,800 ml/min total flow (800 vs 1,200 ml/min pure H₂)
Noise: QY-A1200 is the quietest in the range; QY-A1800 trades a few dB for output
Footprint: identical 16 kg / 260 × 340 × 420 mm chassis in both machines
Display: smart touch with live TDS/temp vs front-panel control

Buying advice

Which one fits you?

QY-A1200 is for you if…

You want the quietest possible machine, plan to run long evening sessions, and value the smart touch display with live TDS and temperature.

QY-A1800 is for you if…

You want more hydrogen per session — for serious solo protocols, two-user households, small wellness studios or yoga rooms — without moving up to the multi-user QY-A3000.

Engineering analysis

Certifications

Both machines carry CE, FCC, RoHS, ISO 9001 and ISO 13485-aligned manufacturing. Certifications describe hardware and manufacturing standards, not therapeutic status.

View all certifications →

Maintenance considerations

Both use a 3 L purified-water reservoir and the same cell-rinse cadence. Use distilled or RO water. The identical 16 kg chassis dissipates heat consistently across back-to-back sessions.

Frequently asked questions

Does the QY-A1800 produce 50% more hydrogen than the QY-A1200?: Yes — pure H₂ flow steps from 800 ml/min on the QY-A1200 to 1,200 ml/min on the QY-A1800, with total gas (H₂+O₂) rising from 1,200 to 1,800 ml/min.
Is the QY-A1800 a multi-user machine?: It includes a Y connector for two-user sessions. For three independent outlets and multi-user clinical use, step up to the QY-A3000.
Which is quieter?: The QY-A1200 at ≤40 dB — the quietest machine in the range. The QY-A1800 is louder at ≤48 dB because it packs higher output into the same chassis.
Can I use both in the same accessory ecosystem?: Yes — cannulas, Y connectors and humidifier tubes are interchangeable across the QY-A series.