React Health Luna G3 Auto CPAP Machine with Heated Humidifier

For Reference Only
Free Shipping
Prescription Required

Luna G3 Auto CPAP Machine
Heated Tubing
Cellular Modem (LG3600 only)
2x Filters
SD Card
Carrying Case
Power Supply and Cord
User Manual

  • If machine is returned for refund or the order is canceled after the Rx service has been provided, $99 will be deducted from the refund to cover the complete cost of the Rx service.
  • If machine order is canceled before the Rx service has been provided, a $49.50 Rx admin fee will be deducted from the refund.

Luna G3 Auto CPAP Machine with Heated Humidifier by React Health

The Luna G3 APAP Machine from React Health is a sleek and compact auto-adjusting CPAP machine designed to enhance your sleep apnea therapy experience. Measuring just 10.4" x 5.7" x 4.5" and weighing a mere 3.75 lbs, the Luna G3 takes up minimal valuable bedside real estate and is easily portable for travel. As an auto CPAP machine, the Luna G3 constantly monitors the user's breathing pattern and adjusts pressure settings to prevent breathing events.

The Luna G3 features an integrated heated humidifier with a removable 360 ml water chamber that can be easily detached from the side of the machine with a simple push-and-release mechanism. A large LCD display and control knob to the right of the screen allow users to easily cycle through menu settings while the prominent start/stop button on the top of the device initiates therapy. Users can view their CPAP therapy settings such as therapy mode, prescribed pressure and Reslex settings right from the home screen, eliminating any confusion regarding their sleep apnea therapy settings.

Humidification and Heated Tubing
The Luna G3's heated humidifier features an automatic setting as well as five fixed humidity levels. When the Auto setting is selected, the machine will adjust the humidity level in response to the environment to maintain optimal humidity. Users can also preheat their humidifier for 30 minutes prior to starting therapy.

The machine is compatible with all non-heated tubing featuring standard 22mm cuffs; however, heated tubing is recommended to prevent condensation or rainout in the CPAP tube and mask. Luckily, the heated tubing is a standard accessory with the Luna G3. Luckily, the heated tubing is a standard accessory with the Luna G3.

Comfort Features
Like most modern CPAP and APAP machines, the Luna G3 APAP comes with many comfort features and settings for a personalized therapy experience. The comfort features include Reslex, Ramp Time/Auto Ramp and Auto On. Reslex lowers pressure during exhalation to make breathing more comfortable. It can be turned off or set from 1 to 3 with each number corresponding to the amount of pressure decrease on exhalation.

Ramp gradually increases pressure from a lower, more comfortable initial level over the set Ramp Time (0-60 mins) to the prescribed therapy pressure. Auto Ramp is an upgraded ramp feature which delivers pressure at a lower setting and increases it only once the user has fallen asleep. Another standard comfort feature, Auto On, enables hands-free therapy initiation simply by breathing into the CPAP mask.

Data Access
The Luna G3 APAP machine offers multiples options for users to view their sleep data and stay on track of their therapy goals. Users can download the 3B Luna QR Code app (iOS/Android) and scan the QR code generated by the machine to access their compliance report or generate their report using the web based iCode Connect program. iCode Connect can be accessed via your internet browser and offers two options for generating reports: SD card download or iCode input. The iCode is a string of 16 digits found under the "Report" icon on the home screen.

Users who prefer to leave the compliance monitoring to their healthcare provider will want to ensure they purchase the Luna G3 model with an integrated cellular modem (LG3600). The modem uses cellular connectivity to automatically transmit therapy data to providers and also allows for remote setting changes for everyone's convenience.


How do I clean my Luna G3 Auto CPAP Machine?
Unplug the Luna G3 Auto and wipe down the outside of unit with a damp cloth. The water chamber and heated tubing should be removed and washed with mild soap and warm water at least once a week. The water chamber is also top rack dishwasher safe. If cleaning by hand, soak the water chamber and heated tubing in warm, soapy water and rinse thoroughly under running water. Air dry the water chamber and tubing away from direct sunlight.

To minimize mold and bacteria buildup, we recommend emptying the water chamber every 1 to 2 days. Use only distilled water in the water chamber to minimize mineral buildup that can leave a stubborn, white chalky residue on the bottom of the chamber. To make cleaning a lot more convenient, the water cha

How often should I replace my Luna G3 supplies?
The tubing (heated or non-heated) and water chamber should be replaced every 6 months. The reusable foam filter that comes with the machine should be replaced every 6 months. A disposable filter can be used instead of the reusable filter; however, the disposable filter should be replaced every 2 to 3 months as it is not washable. Please note that the frequency of filter replacements may vary depending on air quality.

Can the Luna G3 Auto CPAP be used on the plane?
The Luna G3 Auto is FAA approved for in-flight use. CPAP machines are medical equipment and do not count against an airline’s carry-on limit. Airlines have different regulations regarding in-flight CPAP use. Please make sure you are familiar with your airline’s on-board CPAP use policy prior to traveling.

Does the Luna G3 heated tubing work with any CPAP machine?
The Luna G3 heated tube is designed for all Luna G3 CPAP and BiPAP machines. It is not compatible with machines from other manufacturers or with the Luna G2 series.

How do I remove the water chamber?
To remove the water chamber from the Luna G3 Auto CPAP, simply push down on the water chamber. The water chamber will pop up and can then be removed from the machine. To replace, simply position the water chamber over the heater plate and press down until it clicks into place.

How do I adjust pressure on my Luna G3 Auto CPAP?
Pressure settings can only be adjusted on the Luna G3 Auto CPAP through the clinical menu. Please consult your sleep medicine provider before making changes to your therapy pressure as adjustments may affect the effectiveness of your treatment.

ManufacturerReact Health
HCPCS CodeE0601, E0562
Basic Features
Warranty2 Year Manufacturer Warranty
Sound/Noise Level28 dBA
Carrying CaseYes, included
Expected Service Life5 years
FiltersReusable filter (2 included)
Operation ModesAuto CPAP, CPAP
Auto Start/StopYes/Yes
Leak CompensationYes
Weight with Humidifier3.75 lb (1.7 kg)
Dimensions with Humidifier10.4" x 5.7" x 4.5" or 265 mm x 145 mm x 114 mm (LxWxH)
Humidifier Features
Humidification SystemBuilt-in heated humidifier
Integrated Heated HoseYes
Humidifier Settings0-5
Water Chamber Capacity360 mL to Maximum Fill Line
Power Features
AC Input100-240V, 50-60Hz
AC Power Supply65W
Power Cord Length6 ft.
DC ConverterNo
Battery OptionNo
Pressure Features
Pressure Range4 to 20cm H2O
Pressure ReliefReslex 1 to 3 (1 is min pressure relief, 3 is max)
RampAuto, Set Time 0-60 mins
Starting Ramp Pressure4.0 cmH2O default
Additional Features
AHI DisplayApp, iCode Connect web-based program
Altitude AdjustmentN/A
Oxygen UseYes
Oximetry CompatibilityYes, SpO2 Kit For Luna devices (SG-300)
Compatible with All MasksYes
Software Features
Supports Remote MonitoringYes, built-in cellular modem (LG3600 only)
Smartphone App3B Luna G3 QR Code app (iOS/Android)
Data DownloadYes via SD card
SD Card IncludedYes

Questions? Ask here. We typically respond within 12-24 hours, often sooner. You'll receive email notifications once answered.
1–10 of 17 Questions
Q. I have a new luna g3 cpap machine. I need an adapter to hook my so clean 2 to my cpap machine.
Which adapter can I use? It has to plug into the air intake hose connection.
A. Hello! We do not carry SoClean products, best to give them a call to find a suitable adaptor piece.
Q. Hi , i was curious if you have Lab compatible machines for in lab use? I need one for now. thank you.
A. We have CPAP machines that can auto-titrate between 4-20cmH20. I am not sure however the requirements for your lab specifically.
Q. My Reacthealth Luna G3 CPAP machine will not automatically turn on when I return the mask to my face and start breathing deeply in and out. I have to push the start button to get the air flowing again every time. After calling APRIA Healthcare several times, this problem still exists. There must be a problem in the settings or this machine is not working correctly. HELP!
A. You will need to contact your provider you purchased/received the device from. They will need to turn on the smart start/stop feature in the clinical menu for you to work this function. If it is already turned on, contact your provider for a RMA.
Q. How would this machine work with a SoClean machine?
A. We are unaware of an existing adapter for this cpap to work with a SoClean. You may want to contact SoClean directly.
Q. Oxygen generator compatible?
A. Yes, you can attach a oxygen enrichment adapter and T in oxygen to this device for nocturnal oxygen during CPAP therapy.
Q. I wish to take my Luna G3 Auto Cpap with me on a trip outside of the US. What do I need to do so?
A. The Luna G3 Auto Cpap has a built in converter that will automatically adjust the voltage. You only need a plug adapter as you will for all of your electronics.
Q. I just received a new prescription from my Doctor. How do I get into the clinical settings on my new Luna G3 to set pressures?
A. To enter the clinical settings on the Luna 3G highlight settings on the home screen. Then press and hold the Home button below the screen and the round button to the right of the screen simultaneously until you see the screen change.
Q. I have a React Health Luna G3 Auto Cpap machine with a humidifier. What is the trick to the water chamber? I can't figure out how to open the lid? What am I doing wrong?
A. Push down on the water chamber and then the chamber will release and pop up. The lid will fold back for you to add the distilled water. To replace, put the chamber in place and press down to click it into place.
Q. I was travelling and the airline lost my luggage! Inside the luggage was the AC power adapter for my new Luna CPAP. Here I am on vacation and no way to use my CPAP. Do you carry the proper AC power adapter?
A. That is so unfortunate for you! All is not lost. We do have the AC power supply for the Luna CPAP in stock and ready to ship to you. Please give us a call and we will be happy to create an order for you.
Q. What are the main differences with the s11, please? Thank you.
A. The Resmed Airsense 11? Two different manufacturers really. Both have modems, wifi for app and SD cards for data collection. Both have the comfort settings and CPAP / APAP ability.
Showing 1 to 10 (of 17 questions)

Share your review with our customers and earn $2.00 worth of points!
React Health
Basic Features
2 Year Manufacturer Warranty
2-Year Manufacturer Warranty
2 Year Manufacturer Warranty
Sound/Noise Level
28 dBA
27 dBA with uncertainty of 2 dBA
26.6 dBA
Carrying Case
Yes, included
Yes, included
Yes, included
Black and white
Expected Service Life
5 years
5 years
5 years
Reusable filter (2 included)
Disposable filter (1 included)
Disposable filter (1 included)
Auto Start/Stop
Leak Compensation
2.5 lb (1.13 kg)
2.45 lb
Weight with Humidifier
3.75 lb (1.7 kg)
2.56 lb (1.16 kg)
2.75 lb
9.32" x 3.72" x 5.45"or 236.7 mm x 94.5 mm x 138.5 mm (LxWxH)
8" x 4.6" x 5.91" (LxWxH)
Dimensions with Humidifier
10.4" x 5.7" x 4.5" or 265 mm x 145 mm x 114 mm (LxWxH)
10.21" x 3.72" x 5.45" or 259.4 mm x 94.5 mm x 138.5 mm (LxWxH)
10" x 4.6" x 5.91" (LxWxH)
Humidifier Features
Humidification System
Built-in heated humidifier
Built-in heated humidifier
Built-in heated humidifier
Integrated Heated Hose
Humidifier Settings
Water Chamber Capacity
360 mL to Maximum Fill Line
380 mL to max fill line
380 mL to max fill line
Power Features
AC Input
100-240V, 50-60Hz
100-240V, 50-60Hz
100-240V, 50-60Hz
AC Power Supply
Yes, 90W
Power Cord Length
6 ft.
6 ft
6 ft
DC Converter
Battery Option
Yes, compatible with many third-party lithium-ion batteries
Pressure Features
Pressure Range
4 to 20cm H2O
4 to 20 cm H2O
4 to 20 cm H2O
Pressure Relief
Reslex 1 to 3 (1 is min pressure relief, 3 is max)
EPR 1 to 3 (1 is min pressure relief, 3 is max)
EPR 1 to 3 (1 is min pressure relief, 3 is max)
Auto, Set Time 0-60 mins
Auto, Off/Set Time 5-45 mins (5 minute increments)
Auto, Set Time 0-45 mins (5 minute increments)
Starting Ramp Pressure
4.0 cmH2O default
4.0 cmH2O default
4.0 cmH2O default
Additional Features
AHI Display
App, iCode Connect web-based program
Machine, app
Machine, app
Altitude Adjustment
Automatic up to 9,870 feet
Automatic up to 8500 feet
Oxygen Use
Yes up to 15 L/min
Yes, up to 4L/min
Oximetry Compatibility
Yes, SpO2 Kit For Luna devices (SG-300)
Yes, works with NONIN WristOx2 Oximeter 3150 with BLE
Yes, ResMed AirSense/AirCurve 10 Oximetry Kit (370004)
Compatible with All Masks
Software Features
Supports Remote Monitoring
Yes, built-in cellular modem (LG3600 only)
Yes, built-in cellular modem
Smartphone App
3B Luna G3 QR Code app (iOS/Android)
myAir app (iOS/Android)
myAir app (iOS/Android)
Data Download
Yes via SD card
Yes via SD card
Yes via SD card
SD Card Included