What Oxygen Setting Do You Need for a Portable Concentrator?

One of the most common and important questions people ask is: “What oxygen setting do I need for a portable concentrator?”

The answer is not as simple as matching a number on your home oxygen system to a portable device.

Portable oxygen concentrators work differently, and choosing the wrong setting can lead to poor oxygen levels or a system that doesn’t meet your needs.

Understanding Oxygen Settings

Most portable oxygen concentrators use pulse flow settings, not continuous liters per minute (LPM).

This means:

• A setting of “2” on a portable concentrator is not the same as 2 liters per minute from a home oxygen system
• Each machine delivers oxygen differently
• Settings are not standardized across devices

Why Pulse Flow Is Different

Pulse flow systems deliver oxygen in bursts when you inhale, rather than continuously.

This improves efficiency and allows for smaller, lighter devices—but it also means the settings cannot be directly compared to continuous flow oxygen.

Why Your Exact Setting Matters

Your correct setting depends on:

• Your doctor’s prescription
• Your oxygen saturation levels
• Your breathing rate
• Your activity level

Two people with the same prescription may still require different portable systems based on how they use oxygen throughout the day.

What Most Companies Won’t Tell You

• Settings are not interchangeable between machines
• Some portable units may not meet your oxygen needs, even if they appear similar
• Choosing based on size alone can lead to poor oxygen delivery

Common Mistakes

• Trying to match portable settings directly to home oxygen
• Choosing a device without confirming oxygen output
• Buying based on weight or price instead of performance

Who This Is NOT For

• Anyone trying to determine oxygen needs without a prescription
• Patients who have not confirmed their oxygen requirements with a healthcare provider

How to Make the Right Choice

The best way to choose the right portable oxygen concentrator is to match the system to your actual oxygen needs and lifestyle.

This includes:

• Your prescribed setting
• Whether you need oxygen during sleep
• How active you are during the day

Bottom Line

Oxygen settings are one of the most misunderstood parts of choosing a portable oxygen concentrator.

Getting this wrong can mean choosing a system that doesn’t deliver enough oxygen.

Call 1-800-608-8651 to make sure you choose the right system based on your prescription and daily needs.

To compare your options, see our full guide to the best portable oxygen concentrators.