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Respiratory Equipment: Advancements in Oxygen Therapy Equipment

Rapid Advancements of Oxygen Therapy Equipment

In the past, patients diagnosed with conditions requiring oxygen therapy faced the cumbersome burden of traditional oxygen therapy equipment, including oxygen canisters and liquid oxygen technology. Among other sacrifices, many people lost their mobility because moving around with this oxygen therapy equipment was so awkward, uncomfortable and inconvenient. Additionally, people using traditional compressed or liquid oxygen are unable to travel by plane with their oxygen respiratory equipment, meaning their respiratory treatment devices cost them their freedom. Thankfully, this traditional oxygen therapy equipment is no longer the only option for patients needing supplemental oxygen.

Since 2001, Inogen has been developing new lightweight, portable oxygen concentrators, which have done much to improve the lifestyle of people who need oxygen to breathe better. Our oxygen therapy devices have been designed to improve the freedom, independence and mobility of our customers, so that oxygen therapy improves their lives, rather than impeding them. We are proud to say that our customers tell us our respiratory treatment devices do just that.

Inogen’s single solution portable oxygen concentrators are small, easy to carry, quiet, energy-efficient and simple to use. A single solution alternative in oxygen therapy equipment means patients no longer need multiple, unwieldy devices for different uses, whether at home, sleeping or traveling. Learn more about our portable oxygen concentrators and how they can improve your life on oxygen.

Respiratory Equipment for Oxygen Therapy

Chronic breathing problems that require the ongoing use of oxygen respiratory equipment present a serious lifestyle challenge. Patients needing respiratory therapy equipment as part of their daily routine not only suffer from the health effects of the breathing condition itself, but they are also saddled with the inconveniences associated with medical respiratory equipment. Thankfully, not all oxygen therapy equipment is difficult to use or to carry with you. 

Inogen is a manufacturer and accredited home healthcare provider with one primary goal: to give renewed freedom and independence to users of outdated commercial and home respiratory equipment. We believe there is a better option than the heavy, awkward traditional oxygen tanks that only hold a finite amount of oxygen and require regular refilling or replacement. Inogen offers several different kinds of oxygen concentrators, all respiratory treatment devices created to help you improve your freedom, independence and mobility. Depending on your life and what you need from your oxygen concentrator, Inogen has a product that is right for you. Learn more about Inogen’s oxygen respiratory equipment.

Choosing Your Oxygen Therapy Equipment

Choosing the right oxygen therapy equipment for you requires input from your doctor, your oxygen prescription and an understanding of what you want most from your oxygen concentrator. There are a number of different things to consider when choosing an oxygen concentrator, including:

Flow rate and settings:

Know the flow rates and settings you will need, as well as the kind of dosing your doctor recommends (continuous flow vs. pulse dosing) as that will narrow your choices of oxygen therapy devices.

Time used:

The amount of time and frequency with which you will be using your oxygen concentrator each day will influence your choice.

Weight and dimensions:

Consider the size and weight of your oxygen respiratory equipment, particularly if you intend to carry it with you frequently.

Battery duration:

If you live an active lifestyle or travel frequently, consider the battery life offered in any respiratory treatment devices you consider.


Look into incorporated technology for monitoring your oxygen therapy devices from a supported mobile device.

Inogen currently offers oxygen therapy equipment to meet a variety of needs. Let’s take a closer look at how each of our oxygen concentrators, and complementary respiratory treatment devices, can suit different lifestyles and requirements. 

Inogen One G5:

The Inogen One G5 is our latest innovation in portable oxygen concentrators today. The Inogen One G5 offers six flow settings, the most offered by any of our portable oxygen concentrator models, allowing you to customize your oxygen flow as your needs change throughout the day. This model also features the longest battery life available, providing up to 6.5 hours of battery life on setting 2 with the single battery. You can also check your oxygen use, and the function of your POC, by using Bluetooth on any supported device to connect with the Inogen Connect App. For oxygen users looking for a variety of flow options or a long battery life, the Inogen One G5 is the ideal choice. 

Inogen One G4:

The Inogen One G4 is the smallest and most lightweight Inogen One model available, measuring about the size of a one-pound bag of coffee and weighing just 2.8 pounds. Offering three flow settings and up to 2.7 hours of battery life on setting 2 with a single battery, the Inogen One G4 still provides ample freedom in a very small package. You can also take advantage of the Inogen Connect App to help you monitor your unit, even on the go. If you lead an active lifestyle and prefer to use the lightest, most portable Inogen One model, or if you find carrying anything heavy is tiresome and frustrating, the Inogen One G4 is an excellent choice for you.

Inogen One G3:

The Inogen One G3 offers five flow settings and up to 4.7 hours of battery life on setting 2 with a single battery, making it a solid choice for meeting your oxygen needs. The Inogen One G3 still weighs less than 5 pounds, coming in at 4.8 pounds, and offers the same Intelligent Delivery Technology® and clinical validation for 24/7 use as the other Inogen One models.

Inogen At Home:

The Inogen At Home is our home oxygen concentrator, offering 5 liters per minute of continuous flow oxygen, while maintaining a quiet noise level, no louder than inside a library. This stationary model is also extremely energy efficient, using just 100 watts of energy on setting 2. The Inogen At Home is lightweight for a stationary model, weighing just 18 pounds, so you can move the Inogen At Home from room to room as needed. If you need continuous flow oxygen, the Inogen At Home is the right oxygen concentrator for you.

For a quick comparison of the Inogen One models, check out our Inogen One Comparison Chart.

Common Respiratory Equipment Accessories

In order for your oxygen therapy devices to deliver oxygen to you, you will need other respiratory treatment devices to ensure you get the correct amount of oxygen. Here are the most common home oxygen therapy devices, as well as a brief explanation for why you might use each of them.

Nasal Cannula:

This is the device that most of us have seen, in which rubber tubing runs from your oxygen device to your face, hooks over your ears, and delivers oxygen through your nose. Designed for comfort and function, there are many styles of cannula to fit most patients’ needs.

Face Mask:

Patients with more severe symptoms may need to wear a mask that covers the nose and mouth to fulfill their oxygen needs. This allows for greater oxygen flow.

Oxygen Regulator:

A flow meter built into an oxygen regulator used by oxygen tank systems allows the user to increase or decrease the flow of oxygen being provided. This amount is usually measured in liters per minute (lpm), with most flow meters graduated from 0 to 15 lpm. Oxygen concentrators use oxygen sensors instead, which can also alert to oxygen delivery problems.


This device connects directly to the trachea via a small hole in the throat and delivers the oxygen directly. It is worn as a necklace, and is much less noticeable than cannulas and masks. These are typically only used for patients with chronic hypoxemia (low blood oxygen).[1]

Oxygen masks are generally reserved for high flow rates or for patients who struggle with carbon dioxide retention. For the majority of home oxygen therapy equipment, standard nasal cannulas are most common as they are more comfortable and less intrusive than an oxygen mask. Regular nasal cannulas are preferred for patients using between 1-5 liters of oxygen per minute on their respiratory treatment devices.[2] Your doctor will decide which oxygen therapy equipment is right for you. 

No matter what oxygen respiratory equipment you need, Inogen likely has a product that will improve your oxygen therapy experience. Find out why customers are so happy with Inogen products and contact us for more information today. We look forward to helping improve your life on oxygen. 

Oxygen. Anytime. Anywhere.®


[1]Torres, Cheryl. “Transtracheal Oxygen Therapy.” National Jewish Health, National Jewish Health, 1 July 2017, www.nationaljewish.org/conditions/medications/on-the-go-with-oxygen/transtracheal-oxygen.

[2] Heitz, David. “Nasal Cannulas and Face Masks.” Healthline, Healthline Media, 8 July 2017, www.healthline.com/health/nasal-cannulas-and-face-masks#outlook.

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