React Health G3 X Auto CPAP with Heated Humidifier & Heated Tubing

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The React Health G3 X Auto CPAP is the next generation of the Luna G3 and the first standard-size foam-free PAP available in the U.S. — no polyurethane sound-abatement foam anywhere in the airpath. It auto-adjusts pressure breath by breath with React Health's Smart A algorithm (100% AHI agreement in a 2025 independent bench test), and ships complete with an integrated heated humidifier and heated tubing. Backed by an industry-leading 5-year warranty.

Please see our buying guide for help selecting a CPAP and mask.

Key features include:

• Foam-free design — no sound-abatement foam
• Smart A auto-adjusting pressure algorithm for personalized therapy
• Integrated heated humidifier (360 mL) with auto humidity control
• Integrated heated tubing to prevent rainout
• Auto ramp, bedside clock and resupply reminders
• 4G cellular modem, QR code and SD card data options
• React Health Connect cloud platform and patient app
• Ultra-quiet operation under 28 dBA
• 5-year manufacturer warranty

In the box:

• G3 X Auto CPAP Machine with integrated heated humidifier
• Humidifier water chamber
• Heated tubing
• Tubing elbow connector
• Power supply and power cord
• Reusable foam filter
• Disposable fine filters
• Travel carry bag
• User manuals (device and heated tubing)

Technical Specifications:

• Pressure Range: 4 to 20 cmH2O
• Ramp Time: 0 to 60 minutes
• Humidifier Capacity: 360 mL
• Noise Level: <28 dBA
• Dimensions: 10.4" L x 5.7" W x 4.5" H
• Weight: 3.75 lbs
• Connectivity: 4G cellular, QR code, SD card
• Warranty: 5 Year