Buying Guide: How To Compare Portable Oxygen Devices

Quick Summary:

With so many factors to consider, purchasing respiratory therapy equipment may feel overwhelming. Understanding how oxygen devices such as concentrators and cylinders work is the first step.

Keep in mind factors like your lifestyle, maintenance requirements, weight, battery life, and price.

Purchasing options, such as through insurance or in a rental program, may impact your selection.

Reach out to Vitality Medical’s friendly customer service teams if you have questions or need assistance.

Introduction

If you have an active lifestyle but need respiratory support, your doctor may prescribe you a portable oxygen concentrator or an oxygen cylinder.

Although oxygen devices vary in size, output, and battery life, using them as directed will greatly improve the quality of your life by allowing you to take your oxygen therapy wherever you go.

There is an ocean of options. How do you know which one is right for you?

This blog will serve as a practical guide to purchasing portable oxygen devices. It will explore factors such as device types, key specifications, and user considerations.

Understanding Portable Oxygen Devices

Your doctor will prescribe the right oxygen delivery device for you based on your mobility needs, oxygen flow requirements, and travel frequency.

Portable Oxygen Concentrators (POC)

  • Extract oxygen from the air around you
  • Typically for pulse dose prescriptions
  • Lightweight and compact

Portable Oxygen Cylinders

  • Store compressed supplemental oxygen
  • Provide a continuous flow of oxygen
  • Refillable

Key Differences Between Device Types

Portable Oxygen Concentrators

  • Pull oxygen from the air
  • Feature rechargeable batteries
  • Require regular filter cleaning or replacement
  • Provide oxygen without refills

Oxygen Cylinders

  • Deliver oxygen from a pre-filled tank
  • Tanks must be periodically refilled
  • May be preferred for short-term or backup use

Continuous Flow vs. Pulse Dose Oxygen Delivery

Continuous-Flow

  • Only flow type for oxygen cylinders
  • Provides constant oxygen flow
  • For sleep or stationary needs
  • For individuals with higher supplemental oxygen needs

Pulse-Dose

  • Most common delivery for portable oxygen concentrators
  • Supplies oxygen only during inhalation
  • For individuals with more respiratory independence

Vitality Medical is a great source for both continuous-flow and pulse-dose portable oxygen concentrators.

Battery Life and Power Options

Oxygen cylinders don’t require a battery to function. Instead, regulators control their flow rates. However, their supplemental oxygen is limited, whereas concentrators can pull oxygen from the surrounding air until they run out of batteries or are turned off.

Oxygen concentrator flow settings greatly impact battery life. Portable concentrators typically offer pulse-dose; however, a few machines offer both. Normally, the higher the setting, the shorter the battery life.

Some units have the option of 1 or 2 batteries, which also impacts how often the machine needs to be charged. For example:

Zen-O Portable Oxygen Concentrator RS-00502-G
FSA & HSA Eligible
(4)
$3,145.00
  • Pulse Dose (At Setting 2)
    • 1 Battery: 3 Hours
    • 2 Batteries: 6 Hours
  • Continuous Flow (Setting 2)
    • 1 Battery: 4 Hours 30 Minutes
    • 2 Batteries: 9 Hours
SimplyGo Portable Oxygen Concentrator 1068987
FSA & HSA Eligible
(11)
$2,190.00

Out of stock

  • Pulse Dose (At Setting 2)
    • 1 Battery: 3.5 Hours
  • Continuous Flow (At Setting 2)
    • 1 Battery: 0.7 Hours
iGo2 Portable Oxygen Concentrator with LCD Screen Display
FSA & HSA Eligible
(7)
$2,999.00 - $3,499.00
  • Pulse Dose (At Setting 2)
    • 1 Battery: 3.5 Hours

    Consider carrying backup batteries and power adapters with you for extended use or in case of an emergency.

    Newer concentrators support USB-C cables or lightweight lithium-ion batteries for efficient recharging.

    Weight, Size, and Portability

    When you’re on vacation or out and about on daily errands, a few pounds make a big difference in mobility and comfort.

    Oxygen cylinders are large and can sometimes be heavy depending on their volume. However, carrying cases can easily attach to the back of a wheelchair.

    Compact oxygen concentrators are easier to tote around. Smaller units take up less space when stored in suitcases or overhead bins on airplanes.

    Many oxygen devices are FAA-approved for commercial air travel. However, you should always check the TSA and airline’s current policies when booking a flight.

    Some of the lightest oxygen concentrators Vitality Medical offers include:

    Inogen One G4 Portable Oxygen Concentrator
    FSA & HSA Eligible
    (3)
    $2,320.80 - $2,948.00
    • Length: 5.91 Inches
    • Width: 2.68 Inches
    • Height: 6.5 Inches
    • Weight: 2.2 Pounds
    Precision Medical Live Active Five Portable Oxygen Concentrator
    FSA & HSA Eligible
    $2,125.00
    • Length: 8.5 Inches
    • Width: 3.2 Inches
    • Height: 8.4 Inches
    • Weight: 5 Pounds
    Inogen One Rove 6 Portable Oxygen Concentrator
    FSA & HSA Eligible
    $2,304.00 - $3,515.00
    • Length: 7.8 Inches
    • Width: 3.27 Inches
    • Height: 8.14 Inches
    • Weight: 4.8 Pounds

    Maintenance, Durability, and Warranty

    Oxygen Cylinder Recurring Maintenance Needs

    • Refilling Cylinders
      • When the tank empties, refill it at home using a fill system, or take it to a professional to have it done for you. Make sure the cylinder is clean and dry before you refill it.1
    • Cleaning the Exterior
      • Once a week, wash the outside of the cylinder and any carrying equipment with a damp cloth. Do not lay the tank on its side.1

       

    Oxygen Concentrator Recurring Maintenance Needs

    • Cleaning Oxygen Filters
      • Filters protect the machine from taking in unwanted particles from the surrounding air. Depending on their material, some are replaceable while others are washable. Regardless of the cleaning/replacement method, you should regularly check external air filters.
      • You can easily clean your external filters at home. However, you’ll need a technician to replace internal air filters.
    • Checking Tubing
      • Inspect your cannula daily for kinks, clogs, or leaks. If you detect any damage to the tubing, replace it immediately to ensure adequate oxygen delivery. Clean the prongs and disinfect the outside of the canula regularly. Replace it as often as directed by your doctor.
    • Inspecting Battery Health
      • Take note of battery performance. If you notice you need to charge your unit more frequently or if it takes longer to recharge, contact the manufacturer.
    • Warranty Coverage
      • Accidents happen. Thankfully, most oxygen concentrators are covered under a warranty. This saves you the money it would have otherwise cost to replace the unit, and it ensures all replacement parts exactly match the concentrator’s make and model.

    Price, Insurance, and Long-Term Value

    Medical equipment is expensive, and purchasing either an oxygen cylinder or an oxygen concentrator is a long-term investment. When comparing costs, consider factors like durability, included accessories, and service life.

    If you have medical insurance, your plan may cover some of the cost. They may even select a specific oxygen concentrator for you.

    Oxygen concentrator rental programs may help in budget planning. However, they may also limit your options depending on availability.

    Conclusion

    Selecting the best portable oxygen device for your needs depends on your lifestyle, flow requirements, and comfort preferences.

    Understanding delivery type, battery life, and maintenance requirements ensures better long-term satisfaction.

    Vitality Medical is a trusted source for portable oxygen concentrators, accessories, and replacement parts.

    Footnotes

    • 1  Patterson, Kimmi. “How to Clean and Maintain Your Oxygen Equipment.” University of Maryland Medical System Health Hub, 9 Jan. 2026, health.umms.org/primary-care/maintain-your-oxygen-equipment/.