Luna G3 Auto-CPAP

Free CPAP Success course with purchase

Luna G3 Auto-CPAP

4.912 reviews
$ 849

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IN STOCK Ships in 1-2 business days

 
This product requires a prescription before shipment.

Prescription Required

This product requires a valid prescription from a licensed physician. Sleep Doctor can help you obtain one or you may upload your own after purchase.
Product Details

The next-generation Auto-CPAP from trusted brand 3B offers an ultra-modern design with a user-friendly interface.

  • Three methods of data transfer (Cellular, SD card, iCode) so your data will never be inaccessible.
  • The humidifier has a pre-heat option and the unit comes standard with heated tubing for maximum comfort.
  • Dimensions (L x W x H): 265 mm × 145 mm × 114 mm
  • Weight: 1.7 kg
  • Sound level: < 26 dB, when the device is working at the pressure of 10 cmH2O
Care

To clean your Luna G3 Auto-CPAP, follow these steps:

  1. Rinse the hose with water and mild soap
  2. Scrub the interior of the hose with a tube brush to remove debris
  3. Rinse the hose with clean water to remove suds
  4. Hang the tube to dry on a towel rack
Shipping & Returns

Free Shipping for orders $50 and above in contiguous U.S. For orders under $50.00, the shipping rate is $7.99. Orders shipping to Alaska, Hawaii, Puerto Rico, Guam, and Virgin Islands are subject to an additional shipping fee.

Expedited Shipping

Orders under $50.00:

  • 2-day shipping - $19.99
  • Overnight shipping - $29.99

Orders over $50.00:

  • 2-day shipping - $29.99
  • Overnight shipping - $49.99

Order must be placed with approved prescription (where applicable) before 10 a.m. ET to ship same day. Excludes Saturday and Sunday delivery.

Expedited shipping is not available:

  • To Alaska, Hawaii, PO boxes and some rural areas.
  • During excluded holidays

Some orders require a prescription and by law cannot be processed and shipped until a valid prescription is on file and verified by Sleep Doctor. We can help you obtain a prescription renewal at no extra charge if your prescription has expired or is not accessible. Just place your order and follow the instructions provided to schedule a complimentary virtual consultation with a board-certified sleep specialist.

Please note that your order may ship in multiple packages.

Once your order ships, you will receive a tracking number and estimated date of delivery. Most customers receive their orders within 4-7 days of shipping. Carrier delays are outside of our control.

Find our full Shipping & Returns policy here.

What's in the box

Who's it for

  • Those seeking a lightweight CPAP machine
  • People who experience dry nose or congestion during PAP therapy
  • Sleepers who are new to PAP therapy

Meet your Luna G3 Auto-CPAP

Intuitive Interface

The device features a bright, full-color display with simple navigation, so adjusting settings and viewing your sleep data is quick and easy.

Product Details

Machine Dimensions
4.49” x 10.43” x 5.71”
Machine Weight
3.75 lbs
Sound Level
26 dBA
Pressure Range
4-20 cmH20
Humidification Available
Yes
Humidification Type
Integrated
Exhalation Relief
No
Ramp Range
Yes
FAA Compliant
No
Max Altitude
N/A
Auto Altitude Adjustment
N/A
Compliance Data
Yes
Advanced Data
No
Phone/Web App Available
No
Auto Start
Yes
Voltage Requirements

100-240V, 50-60Hz, 2.0A

Download User Manual Download Quick Start Guide

Videos

Frequently asked questions

What is continuous positive air pressure?

Continuous positive air pressure (CPAP) machines deliver a continuous level of pressurized air while you sleep. This is in contrast to BiPAP machines, which offer different levels of pressurized air during inhalation and exhalation, and APAP machines, which adjust pressure levels based on your breathing patterns. Sleepers set their CPAP machines to deliver the air pressure level that has been prescribed by their medical professional.

How does the Luna G3 Auto-CPAP differ from the Luna G3 BiPAP?

The Luna G3 Auto-CPAP delivers one level of continuous pressurized air through the night, while the Luna G3 BiPAP produces two different pressurized air levels — one for inhalation, another for exhalation. The Auto-CPAP is a good option for sleepers who are new to PAP therapy, while the BiPAP model is usually prescribed to people who have found CPAP devices to be ineffective.

How loud is the Luna G3 Auto-CPAP?

The Luna G3 Auto-CPAP produces less than 26 decibels (dB) of noise when set to the lowest pressure setting of 10 cmH2O. By comparison, a whisper is considered to be around 30 dB and conversational voices around 60 dB.

How do I clean my Luna G3 Auto-CPAP?

To clean your Luna G3 Auto-CPAP, follow these steps:

  1. Rinse the hose with water and mild soap.
  2. Scrub the interior of the hose with a tube brush to remove debris.
  3. Rinse the hose with clean water to remove suds.
  4. Hang the tube to dry on a towel rack.
Does insurance cover CPAP machines?

Coverage for CPAP machines depends on your insurance provider and plan. Many insurance companies do offer partial or full coverage for CPAP equipment, but requirements—like a sleep study or prior authorization—can vary. To better understand what your insurance covers and how to get started, we recommend visiting CPAPInsurance.com. They offer helpful resources and personalized guidance to make navigating CPAP insurance simple.

4.9
Rated 4.9 out of 5 stars
Based on 12 reviews
Total 5 star reviews: 11 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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12 reviews
  • Robert D.
    Verified Buyer
    Reviewing
    Luna G3 Auto-CPAP
    Rated 5 out of 5 stars
    1/31/26
    Love my Luna

    I will say I thought this was gonna be intrusive and irritating to wear but it's not it's so nice now was it calibrated wrong yes was it difficult the first few days yes but I love it now and sleep better then I have before

    Was this helpful?
  • KH
    Verified Buyer
    Reviewing
    Luna G3 Auto-CPAP
    Rated 5 out of 5 stars
    1/24/26
    Easy!

    This was the only way I would ever complete a sleep study. Telehealth follow up was fantastic.

    Was this helpful?
  • Thomas M.
    Verified Buyer
    Reviewing
    Luna G3 Auto-CPAP
    Rated 5 out of 5 stars
    8/3/25
    Easy to use

    Piece of cake easy to use easy to travel as long as you have power

    Was this helpful?
  • Jose L.
    Verified Buyer
    Reviewing
    Luna G3 Auto-CPAP
    Rated 5 out of 5 stars
    6/15/25
    Very quiet

    Works great and quiet

    And easy to adjust

    Was this helpful?
  • Rhonda B.
    Verified Buyer
    Reviewing
    Luna G3 Auto-CPAP
    Rated 5 out of 5 stars
    5/15/25
    Cpap

    Works great...awesome rest

    Was this helpful?
  • Jeffrey D.
    Verified Buyer
    Reviewing
    Luna G3 Auto-CPAP
    Rated 5 out of 5 stars
    12/24/24
    Luna

    Love it so far

    Was this helpful?
  • Richard R.
    Verified Buyer
    Reviewing
    Luna G3 Auto-CPAP
    Rated 5 out of 5 stars
    11/28/24
    Helps to have a good night's sleep.

    I liked my first unit so much I bought a second for travel. Easy set-up, comfortable mask, great portability. And obtaining it through the Sleep Doctor saved me money versus what I paid for the first unit when I was determined to have sleep apnea. My spouse is happy that I have it also as I wear it through the night. There is a low noise from the unit itself when you are wearing it, but it's barely detectable.

    Was this helpful?
  • Bobby G.
    Reviewing
    Luna G3 Auto-CPAP
    Rated 4 out of 5 stars
    6/26/24
    LunaG3 Auto-Cpap

    Will the VA pay for this?

    Was this helpful?
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