3B Luna G3 BPAP 25A Machine Review

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For adults with obstructive sleep apnea, continuous positive airway pressure (CPAP) is often the most effective treatment. However, for the treatment to be effective, patient adherence needs to be high. Almost 50% of patients stop using their machine as prescribed within the first year.

The Luna G3 BPAP 25A Machine offers users a comfortable, convenient option that may help make it easier to stick with PAP therapy. The G3 BPAP 25A is a small, lightweight bi-level PAP device with a focus on sleeper comfort, convenience, and user-friendliness.

We’ll discuss the Luna G3 BPAP 25A Machine’s unique features, performance, and compatibility, including what customers are saying about the product and what you need to know about the warranty. We’ll also outline how it stacks up to other models in the Airsense 10 Series.

Look & Feel

Sleek, streamlined, lightweight bi-level CPAP machine

Ideal For

  • Tech-savvy sleepers wanting to track sleep data 
  • Shoppers who want a pre-heat option for CPAP tubing 
  • Sleepers looking for a more compact, lightweight machine

Who Should Keep Looking

  • Users wanting a machine they can travel with 
  • Sleepers who want just the basics without additional features 
  • Those looking for compatibility with other brands

Other Models in the Airsense 10 Series

  • Luna G3 BPAP 30VT: Has similar features to the Luna G3 BPAP 25A but includes the ability to refill the water chamber without having to remove it from the machine
  • Luna G3 CPAP: Similar features to the Luna G3 BPAP 25A but with a slightly lower pressure range of 4 to 20 centimeters of water pressure (cm H2O) versus 4 to 25 cm H2O
  • Luna G3 Auto-CPAP: Has the same features as the Luna G3 BPAP 25A along with an added automatic component that adjusts pressure based on apnea and snoring episodes 

What You Need to Know About the 3B Luna G3 BPAP 25A Machine

Obstructive sleep apnea causes the throat muscles to either completely or partially collapse during sleep. CPAP machines are designed to keep a sleeper's airway open and increase the quality of breathing while sleeping.

The Luna G3 BPAP 25A Machine is a bi-level PAP machine that is small enough to fit on a nightstand. Bi-level PAP machines have two settings: inhalation and exhalation. For those who find singular air pressure machines uncomfortable, the Luna G3 BPAP 25A offers a possible alternative.

What Comes With It

The Luna G3 BPAP 25A comes with heated tubing, a built-in humidifier, and a reusable filter. Sleepers will need to provide their own mask and any other accessories.

PAP Type: Bi-Level PAP Machine (BiPAP)


  • Luna G3 BPAP 25A Machine with included humidifier 
  • Heated tubing 
  • Air filter 
  • Carry bag 
  • Reusable air filter 
  • SD card
  • Power supply and cable 
  • User manual

Features You Might Like

The Luna G3 BPAP 25A machine has integrated several additional features into the machine to enhance user comfort and experience. These include heated tubing and an auto humidity control modem. The G3 BPAP 25A also has a preheating system for the humidifier water to ensure that the water will be the right temperature before bedtime.

The face of the machine has a built-in clock, as well as accessory and supply reminders, so you don’t have to worry about keeping track of when you need to replace your CPAP equipment.

The G3 BPAP 25A also has an auto-ramp feature. This means that the machine will gradually start the therapy at a low level and then increase it to meet your prescribed pressure once you’re asleep.

Using the SD card included in purchasing the device, you can also keep track of your sleep data so you can share it with your healthcare provider.

Special Features:

  • Pre-heating feature: Warms up the humidifier so water is at the correct temperature prior to use
  • Auto-ramp: Starts CPAP therapy at a lower pressure and slowly increases up to the prescribed pressure level
  • Integrated heating tubing: Heats tubing to prevent condensation and leakage
  • Wi-Fi connectivity: Connects the machine to the internet so you can send sleep data to your physician
  • SD card reader: Allows you to track and store sleep data 

CPAP Machine Size and Cost

At 3.75 pounds, the Luna G3 BPAP 25A is a lightweight BiPAP machine that’s small enough to sit on your nightstand. The built-in humidifier is easy to refill without taking apart the water chamber. However, it doesn’t have a portable power supply, so it wouldn’t be a good fit for traveling or camping.

Bi-level PAP machines generally cost more than singular airway CPAP machines. The Luna G3 BPAP 25A is on the higher end of the average price range for BiPAP machines with similar features.

Dimensions: 10.4” x 5.7” x 4.5”

Weight: 3.75 lbs.

Price: $2,049

How This CPAP Machine Performs

When purchasing a CPAP machine, it’s important to look at the machine’s performance in order to decide if it will be a good fit. 

Is This CPAP Machine Easy to Use?

The Luna G3 BPAP 25A has a very user-friendly digital display with the most frequently used settings easily accessible on the interface. The machine face lights up in the dark, and the dial used to switch between options allows for smooth adjustments. 

How Compatible Is This Machine With Other PAP Products?

This specific machine is only intended to be used with masks manufactured by 3B medical. It’s also important to note that supplies from other brands may not be compatible with the heated tubing feature. 

What Do the Pressure Settings Look Like?

The Luna G3 BPAP 25A machine’s pressure range is 4 to 25 cm H2O, similar to other BiPAP machines. The ramp time for the machine is up to 60 minutes. 

Is This CPAP Machine Noisy?

Most BiPAP machines have a decibel (dB) range of between 25 and 30 dB. When the pressure is set to 10 cm H2O, this machine produces less than 26 dB.  

Are There Air Temperature and Humidity Controls?

The Luna G3 BPAP 25A allows users to control both the air temperature and humidity. The air temperature can be set between 41 and 95 degrees Fahrenheit. There are also five different humidity settings that range between 15% and 93%.  

What Do Maintenance and Care Look Like?

CPAP machines and components should be cleaned regularly. Be sure to disconnect the device entirely before cleaning with mild soap. Dry each component with a clean cloth. 

How Portable Is This CPAP Machine?

Although the Luna G3 BPAP 25A machine only weighs 3.75 pounds, it’s not as small as portable CPAP machines and can’t be battery operated. It’s also important to note that this machine is not FAA compliant. 

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What Do Customers Have to Say About the 3B Luna G3 BPAP 25A?

Sleepers who have been using the Luna G3 BPAP 25A machine say that it’s quiet and affordable, particularly given all the included features. They particularly enjoy the options for higher pressure levels. 

Some users who are using a CPAP machine for the first time have found this machine’s digital interface a little difficult to navigate. Others have noted that the mask can move during sleep, causing some discomfort. 


Trial, Warranty, and Shipping Policies

AvailabilityThe 3B Luna G3 BPAP 25A is available for purchase online from retailers such as Lofta, but you will need a prescription.
ShippingLofta offers free shipping to all 50 states in the United States. A signature is required for all orders over $500, and orders cannot be delivered to a P.O. Box.

Standard shipping typically takes four to seven business days. Expedited shipping is also available for an additional fee.

Some minor assembly is required. The user manual includes setup details.
Sleep TrialLofta offers a 60-night return option. As long as the device doesn’t have any wear and tear and shows no signs of damage, Lofta will refund the item for store credit. The shopper is responsible for return shipping fees.
Warranty3B medical offers a two-year warranty for the 3B Luna G3 BPAP 25A machine. The warranty covers workmanship and material defects. The warranty does not cover any damages caused by alteration, misuse, abuse, or accidents.

Medical Disclaimer: This content is for informational purposes and does not constitute medical advice. Please consult a health care provider prior to starting a new treatment or making changes to your treatment plan.