Reconditoned Inogen G4 3LPM Lightweight Portable

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Reconditoned Inogen G4 3LPM Lightweight Portable


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The InogenOne G4 travel Portable Oxygen Concentrator is among the lightest and easiest to maintain POC on the market. This is a Pulse-Dose unit which means it will give you a puff of Oxygen when you inhale. This would not be recommended for night time use.

The Inogen G4 is small and compact, Incredibly portable, and made very rugged to endure anything life will throw it's way.

The Inogen G4 is very sleek and lightweight. The carry case has a handy shoulder strap for effortless carrying! At less than 3 pounds (with single battery) and shorter than 10 inches in all dimensions, you will hardly know that you are carrying it on your back. The Platinum also provides you with options to carry it on your shoulder or in your hand. You can choose from 3 different oxygen delivery settings:

  • 1LPM (11mL)
  • 2LPM (22mL)
  • 3LPM (33mL)

Inogen G4 is optimized for ultimate airflow. This leads to a cooler operating unit which will last longer. Easy to clean pollen filters can be easily cleaned, and due to their rugged design, hardly ever need to be replaced. Inogen G4 can be operated at an altitude up to 10,000 feet and is also fully FAA certified for use during an airplane flight.

Small, compact, and quiet....Inogen operates at an average of 40 decibels, about the same volume as a hushed conversation. This means you can carry it practically anywhere – dinner, the movies, even the library without worry!

With only 4 easy to use buttons directly on the top of the machine, it is very simple to use.

3 lbs

Height: 7.2 IN.
Length: 5.91 IN.
Width: 2.68 IN.

Oxygen Flow
Intelligent Delivery Technology
Four flow settings from 1-5

Power Settings
AC Power Supply 100-240V, 50-60Hz
(auto sensing to allow worldwide use)
DC Power: for mobile use in car/airplane

Single Battery: Up to 2.7 hours at 2LPM

Double Battery: up to 5 hours at 2LPM

Noise Level
Less than 42 Decibels at flow setting 2


  • One single capacity battery
  • AC adapter
  • DC adapter
  • Carry case
  • Cannula
  • 6 month warranty

Cleaning of the Inogen G4 Portable Oxygen Concentrator

Periodically, you will want to clean the exterior of your Oxygen Concentrator to keep it looking as well as it runs. It is important that you unplug the machine while cleaning it. Using a damp cloth, gently wipe the exterior of the machine. Using cleaning tools such as cotton swabs is perfectly okay, to clean the hard to reach areas. If using a medical disinfectant, make sure to follow all manufacturers instructions. Let the machine air dry before operation, as excess moisture may impare the proper operation of the device.



How does an oxygen concentrator work?
An Oxygen Concentrator is an electrical piece of equipment. You plug it in to the wall outlet of your home. Make sure it has at least 6 inches of room all around it to allow ample air flow. When you turn the machine on, it will bring in air from the room around it. First, the air passes through a couple of filters to clean the air before it enters the compressor. Once inside, the compressor will pump the air into a pair of Sieve Beds. Once the Sieve Beds are pressurized, the material inside called Zeolite will cling on to the Nitrogen, and pass on the Oxygen and other trace gasses to the patient. Every ten to twelve seconds, the internal Valves will switch the air from one Sieve Bed to the other. This produces a rhythmic "breathing" sound from your Oxygen Concentrator, and is normal. During the breathing of your Oxygen Concentrator, the Nitrogen that was in the Sieve Bed is released back in to the rooms atmosphere. Oxygen Concentrators are designed to run 24 hours a day, seven days a week if needed.

What percentage of oxygen does an Oxygen Concentrator deliver?
Oxygen Concentrators are designed to reliably deliver 90% oxygen +/- 3% at any flow rate. This purity has been tested to be clinically acceptable for long-term oxygen therapy.

How often should I clean filters and other accessories?
If equipped, the foam Cabinet Filter on your Oxygen Concentrator should be rinsed in your sink every week. Let it air dry before placing back in the Oxygen Concentrator. The bubble humidifier should be washed daily using a mild detergent and hot water. Tubing, Cannulas, etc are not to be cleaned. Simply dispose of and replace as needed.

Can I purchase a Low Flow (Pediatric) meter for my Oxygen Concentrator?
Most Oxygen Concentrators can be ordered with, or retrofit with a Pediatric Flor Meter. Please call for availability.

What length of Oxygen Tubing can I use with my Oxygen Concentrator?
The maximum recommendation is not to exceed a Bubble Humidifier, a 50 foot long extension hose, and a 7 foot long Nasal Cannula

How can I transport an Oxygen Concentrator in the car?
The optimum way to transport an Oxygen Concentrator is to buckle it in to the back seat, or place it on the rear floor of your vehicle. If necessary, you can safely lay it on it's back in the trunk if it is securely held in place.

Can I use my Oxygen Concentrator overseas?
The Oxygen Concentrators listed on this site are made specifically for US Voltage requirements, which is 110 Volts and 60Hz

What is Turn Down technology?
This Oxygen Concentrator incorporates Turn Down technology. The internal Circuit Board constantly monitors the flow rate and will slow down the compressor at lower Flow Rates. As a result the unit runs cooler and less power is consumed. In turn, you will have a lower power bill, and the Oxygen Concentrator should run longer.

How can I tell if the oxygen purity is good?
If equipped with a Low Purity Sensor, as long as the Green LED light is illuminated, you know that the Oxygen Concentrator is making at least 85% purity Oxygen. If for any reason the Purity falls below therapeutic levels, the Yellow LED light will illuminate. Contact your provider if you notice this.