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Original Price: $1,153.00 Our Price: $873.00 You save $280
Precision therapy without compromise. The Luna G3X is the first foam-free, standard-size Auto CPAP available in the U.S., delivering clinically tested performance with a 5 year warranty and comfort features built around how you actually sleep.
The G3X is the first standard-size APAP available in the U.S. engineered without polyurethane sound-abatement foam. You still get quiet therapy, just without the concerns that come with foam-based sound dampening, which makes it a strong option for anyone looking for a cleaner, safer airflow pathway.
With an industry-leading 5 year warranty, more than double what most CPAP machines offer, the G3X gives you real durability and long-term support throughout your therapy journey.
Smart A continuously adjusts to your needs by analyzing your last five effective therapy sessions. It intelligently sets your minimum and maximum pressures based on your 50th and 95th percentile pressure usage, so your therapy stays tailored to how you actually breathe, not a one-size-fits-all setting.
The G3X corrects obstructive apneas and hypopneas without high pressure overshoots, which means effective treatment with noticeably less discomfort, an especially welcome difference if you've struggled with sudden pressure spikes on other machines.
Even under less-than-perfect mask conditions, the G3X preserves therapy effectiveness with strong leak handling, so a shifted mask or an imperfect seal doesn't mean a wasted night of therapy.
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Warranty |
5 years |
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Chassis design |
Foam-free, first standard-size APAP of its kind available in the U.S. |
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Sound level |
< 28 dB, at a pressure of 10 hPa |
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Weight |
3.75 lbc |
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Dimensions |
10.4” x 5.7” x 4.5” |
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Connectivity |
Built-in 4G cellular, QR code, SD card (no WiFi) |
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Pressure algorithm |
Smart A, adjusts from your last 5 effective sessions |
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Humidification |
Integrated heated humidifier |
The Luna G3X is React Health's newest auto CPAP machine. If you would prefer the previous generation at a lower cost, see the React Health Luna G3 Auto CPAP Machine with Heated Humidifier. For our most affordable option, see the Luna II (G2) Auto CPAP Machine with Humidifier.
Yes. CPAP and APAP machines are regulated medical devices in the United States, so a valid prescription from a licensed healthcare provider is required to complete your purchase.
Yes. 3B Medical rebranded as React Health, so you may see this same machine listed under either name. It is the same product either way.
Most CPAP machines use polyurethane sound-abatement foam to help quiet the motor. The Luna G3X is the first standard-size APAP available in the U.S. built without that foam, while still running quietly, which appeals to patients who want to avoid any concerns tied to foam breakdown over time.
No. The Luna G3X transmits therapy data over its built-in 4G cellular connection rather than WiFi, so your data uploads without needing a home internet connection.
The Luna G3X is the newer model, with a foam-free chassis, the Smart A pressure algorithm, and a 5 year warranty. The Luna G3 uses a standard dial and LCD interface and carries a 2 year warranty, at a lower price point.
The Luna G3X includes a 5 year manufacturer's warranty, more than double the industry standard of 2 years.
