The G3 X Auto CPAP is a next-generation mahine designed to deliver effective, comfortable sleep apnea therapy with smart technology and modern connectivity. Its foam-free design eliminates concerns associated with polyurethane sound-abatement foam while maintaining quiet operation. The G3 X uses a proven auto-adjusting algorithm and Smart A Custom Pressure Response to adapt therapy to your individual breathing patterns, helping provide effective treatment at comfortable pressure levels throughout the night.
For added comfort, the G3 X features an integrated heated humidifier to help reduce dryness and congestion, while the included heated tubing helps maintain consistent air temperature and reduce condensation. A built-in 4G cellular modem allows therapy data to be securely transmitted through the React Health Connect cloud platform for convenient monitoring and care management. With advanced leak compensation, Reslex exhalation relief, detailed therapy reporting, and an industry-leading 5-year manufacturer warranty, the Luna G3 X offers a modern combination of comfort, connectivity, and long-term reliability.
| Therapy Modes | CPAP, AutoSet |
| Operating Pressure Range | 4-20 cm H2O |
| Dimensions | 10.4" x 4.5" x 5.7" |
| Weight | 3.75 lbs |
| Noise Level | 28 dBa |
| Auto Start/Stop Function | Yes |
| Ramp Time | Off, 5 to 60 minutes (in 5-minute increments), or Auto |
| Humidification | Yes. Built-in with 0-5 settings, and auto. Tub capacity - 350 mL |
| Pressure Relief | Yes. RESlex settings from 1-3 |
| Smartphone App | Yes - React Health Plus. Available on iOS & Android |
| SD Card Slot | Yes. SD Card included |
| Bluetooth | No |
| AC Input Range | 100-240V, 50-60Hz |
| Operating Altitude | Sea level to 7,550 ft |
| Warranty | 5 Years (1 year for pre-owned) |
Overall rating: 5.0 / 5 from 1 reviews.
It was easy to set up, came with all the parts needed including the hose, filters and carrying case. My last device was 30 years old and compared to that, this one is so quiet I have to double check to see if it is actually on. Works great with the masks that I have, but when I reorder, since cold season is coming up, I will try a full-face mask.
Christine B. 5/5 Verified
React Health Luna G3 X Auto CPAP Machine with Heated Humidifier