A Portable Oxygen Concentrator (POC) is the perfect choice to deliver on-the-go oxygen therapy. Unlike traditional oxygen tanks and stationary oxygen concentrators, these compact devices let you move freely, travel, and maintain an active lifestyle without being tied down.
What is a Portable Oxygen Concentrator?
Portable Oxygen Concentrators, or POCs in short, are lightweight, battery-powered machines that deliver oxygen-enriched air while giving you the freedom to move around. Instead of storing oxygen like cylinders, these machines draw in air from the surroundings, filter out nitrogen, and provide concentrated oxygen. This eliminates the need for refills and makes the upkeep trouble-free.
How Does It Work?
- The device pulls in air from the environment (about 78% nitrogen, 21% oxygen)
- The air is compressed inside the unit
- Nitrogen is removed using a sieve bed made of zeolite
- Oxygen-enriched air (around 90–95%) is delivered through a nasal cannula or mask
You just connect the nasal cannula to the POC, select the prescribed setting, and switch on the machine.
Benefits of Using a Portable Oxygen Concentrator
Here are the key benefits of using a POC
- Greater mobility
- Freedom from bulky oxygen setups
- Easy to carry and suitable for use on the go
- Supports daily comfort
- Makes it easier to manage your routine confidently
How Long Does a Portable Oxygen Concentrator Last?
Most portable oxygen concentrators are designed to last 5–7 years, depending on usage and maintenance. The majority of POCs are powered by rechargeable lithium-ion batteries, which generally offer 3-5 hours of use on a single charge. Replaceable batteries can extend usability. The POC models come with a warranty for added peace of mind.
Choosing the Right Portable Oxygen Concentrator
With so many options available, choosing the right portable oxygen machine depends on your personal needs and lifestyle.
Oxygen Delivery Modes
There are two major modes of airflow
- Pulse Dose (Intermittent Flow): Delivers oxygen in short bursts when you inhale. This is suitable for users who can trigger the device with their breathing.
- Continuous Flow: Provides a steady supply of oxygen regardless of inhalation. This option is better suited for individuals with lower breathing capacity or those who need oxygen during sleep.
Some POC models have both airflow modes, so you can switch between them based on our needs.
Oxygen Output
Oxygen output is another important factor. Generally, pulse dose POCs deliver 1-7 liters of oxygen per minute, whereas continuous flow POCs have flow settings in the range of 1-3 liters per minute.
Battery Life
Battery life varies depending on the model and settings used. Most POCs run for 3–5 hours per charge. Some models support dual batteries for extended use. Additional runtime can be achieved using external chargers or power adapters.
Size and Weight
One of the most key differences between portable oxygen machines and conventional oxygen cylinders is the size. The POCs are compact and lightweight and most models weigh between 5-15 lbs. If you travel frequently, a lightweight model may be more convenient. For higher oxygen needs, we recommend you go for stationary oxygen machines.
Noise Level
Most portable oxygen concentrators operate quietly. If noise is a concern, especially during sleep, the O2E2® 6LPM Portable Oxygen Concentrator can be a great choice, operating at less than 40 decibels for a more comfortable and restful experience.
Other factors to consider include machine durability, product warranty, additional accessories, and customer service, depending on your personal preferences.
Not Sure Which POC to Choose? Start Here
Choosing the right portable oxygen concentrator comes down to your oxygen needs, lifestyle, and daily routine. Here’s a quick look at the models available and how they compare.
O2E2 4.5 LPM Portable Oxygen Concentrator
- Offers oxygen flow up to 4.5LPM
- Continuous + Pulse dose flow settings
- Designed for basic oxygen needs
- FAA-approved
- A good starting point if you’re looking for a simple and budget-friendly oxygen solution
O2E2 5LPM Portable Oxygen Concentrator (5 lbs)
- Ultra-lightweight design (~5 lbs)
- Supports Bluetooth connectivity
- Built-in oximeter for smart monitoring
- FAA-approved
- Ideal if mobility and smart monitoring are your top priorities
O2E2 6LPM Portable Oxygen Concentrator
- Balanced performance and portability
- Extended battery life (up to ~6 hours)
- Quiet operation
- FAA-approved
- A great all-round option, especially if you prefer a lightweight, quieter, more comfortable experience during use.
O2E2 7LPM Portable Oxygen Concentrator
- Higher oxygen output with 5 continuous flow settings and 7 pulse dose flow settings
- Extended battery life up to (~7.4 hours)
- Slightly heavier (14 lbs) but supports more demanding oxygen needs
- FAA-approved
- Best suited for users who require higher oxygen support.
DeVilbiss iGo2 Portable Oxygen Concentrator
- SmartDose™ technology automatically adjusts oxygen delivery
- Lightweight and user-friendly
- Ultra quiet operation (~37 dB)
- FAA-approved
- Ideal if you want a more automated, hands-off experience.
DeVilbiss iGo2 Portable Oxygen Concentrator with Bluetooth
- Includes all the features in the iGo2 model
- Bluetooth connectivity for added monitoring and control
- Enhanced convenience for users and caregivers
- Ultra quiet operation (~37 dB)
- FAA-approved
- Best for those who prefer a smart, premium oxygen machine.
Bottom Line
The right POC device doesn’t just deliver oxygen, it gives you the freedom to live your life the way you want.
Frequently Asked Questions
Do I need a prescription to buy a portable oxygen concentrator?
Yes, portable oxygen concentrators are medical devices. So a prescription is needed to ensure you’re using the correct oxygen settings for your needs. Always consult your doctor before starting oxygen therapy.
What is the difference between pulse dose and continuous flow?
Pulse dose delivers oxygen in short bursts when you inhale. Most POCs operate in pulse dose settings. Continuous flow provides a steady stream of oxygen and is usually recommended for users who need constant support or use oxygen while sleeping.
Can I use a portable oxygen concentrator while sleeping?
It depends on the model and your oxygen requirements. If you require steady oxygen during sleep, a portable oxygen concentrator with continuous flow or a stationary oxygen concentrator is usually recommended. Always check with your healthcare provider before using a device overnight.
How do I choose the right portable oxygen concentrator?
The right choice depends on your prescribed oxygen level, whether you need pulse dose or continuous flow, your lifestyle, and preferences like weight, battery life, and noise level.
