Inogen One G4 Portable Concentrator

frame 1


pulse rate checking







Things To Know

3-Year or Lifetime Warranty?
You can order your Inogen with a lifetime or 3-year warranty. Batteries and sieve columns have a 1-year warranty and other accessories have a 90-day warranty.
Can I use the G4 without a battery?
Yes! The Inogen One G4 can be used without a battery as long as it is plugged into a wall outlet with the AC power supply or a vehicle with the DC power supply.
Can I use the G4 while charging?
Yes, the Inogen One G4 can be used while it is plugged into an AC electrical outlet or a DC vehicle outlet. The external power will run the unit and charge the battery at the same time.
How long does it take to charge the batteries?
Can I use the G4 while sleeping?
The Inogen One G4 provides only pulse flow oxygen, which requires sufficient inhalation to trigger the pulse of oxygen. While many oxygen users can use a pulse unit while sleeping, others tend to breathe too shallow or through their mouth while sleeping and are unable to trigger the pulse. These oxygen users would be best served by using a portable unit that has a continuous flow setting.
What is the expected maintenance?
There is an air inlet filter that should be cleaned weekly. The G4 also has replaceable sieve columns that are warrantied for one year and will need replacing about every 15-18 months depending on use and climate.
delivery module
Rythm p2 opening  box
Inogen USA Dealer
we can help you find the right INOGEN

We are an Inogen Authorized Dealer & Service Center

beware of resellers who are not authorized dealers 

Finding the right oxygen retailer that will deliver the best USA MADE portable oxygen concentrator at the best price and deliver the best service can be a big undertaking.

There are many factors to consider:

  • Are they an authorized service center?
  • Will they help me in the future?
  • If I drop my portable will they void the warranty?

The deceptive sales practices of sellers that are not authorized will cost you time, money, and worst of all, your freedom.

Do all portable oxygen concentrators deliver the same amount of oxygen? NO!

A reputable dealer will give you seven days to see if your oxygen needs are met.

Please beware of purchasing from resellers that are NOT an authorized Inogen service center.

  • You risk buying used, damaged, or stolen products.
  • You will not have access to support after the sale.


OxiMedical Respiratory understands how important oxygen is for your health, freedom, and independence. 

Our oxygen specialist will help you find the right portable concentrator that delivers the required oxygen for you.

We will provide exceptional support and service after the sale as we continue to put your needs first.

  • An Authorized Dealer will help you if your portable needs service.
  • An Authorized Dealer is knowledgeable about Inogen products.
  • An Authorized Dealer has the full support of Inogen, the manufacturer.
  • An Authorized Dealer is certified by Inogen.
  • An Authorized Dealer is financially responsible.
Look for this Inogen Authorized Label

Be very careful, many places online state they are Inogen Authorized that are not, they illegally use Inogen branded photos and will verbally tell you they are "authorized".

You may be buying used, damaged, or stolen products!

Product Info

The Inogen One G4 is the smallest portable oxygen concentrator on the market, weighing only 2.8 pounds, and can fit in the palm of your hand. Its unique pulse flow delivery system is ideal for oxygen users who need supplemental oxygen to stay active in their home or out and about.

When using a portable concentrator in the pulse flow mode use a fingertip pulse oximeter to determine what setting would best keep your blood oxygen level above 90%.

The G4 can be used while charging the battery when plugged into an electrical outlet with the home AC adapter or when using the car DC adapter. The battery duration on the setting 2 pulse is about 4 hours with the large battery.

Inogen One G4 is designed with field-replaceable sieve beds. The sieve beds are an important part of the production of oxygen in every oxygen concentrator. Over time, and depending on operating conditions, the sieve beds may need to be replaced. G4 sieve beds can be changed easily in under 5 minutes in your own home.

Inogen One G5 vs G4 Educational Video

Please send me a FREE  Lung/Heart Oxygen Guide!

What's in the box?

POC package
Inogen At Home
Product GCE Zen O
Inogen One G5
Caire Eclipse 5

HOME OXYGEN $895 TO $1495

Call to get a great price!

Inogen One G4 Accessories
Philips simply go accessories