
Portable oxygen concentrators have risen in popularity by the turn of the 21st Century because they are smaller, more compact, and more mobile compared to the traditional oxygen concentrators found in hospitals. With these machines, you can travel to different places without worrying about your oxygen therapy.
With so many different POCs available in the market, it’s difficult to choose just one. Some products are smaller and lightweight, while others focus more on the quality of the oxygen delivery. In fact, here are some of the factors you should consider when choosing a portable oxygen concentrator:
- Price
- Continuous or Pulse Oxygen Flow
- Maximum Oxygen Dosage
- Size and Weight
- Battery Life
- Maximum Altitude
- Warranty
Several websites have already provided their personal favorites when it comes to portable oxygen concentrators, and based on those portable oxygen machine reviews, we have compiled some of the bestselling products in the market, including the features that made them the best.
Inogen One G5

Inogen manufactures some of the best portable oxygen concentrators in the market, and their latest product is the Inogen One G5. This unit is only 7.95” H x 9.6” W x 4.49” D and weighs around 4.7 pounds, making it one of the smallest and lightest POCs to carry. However, this machine can deliver large doses of oxygen, with 6 different pulse settings and a maximum output of 1260 mL/min. Plus, this POC also boasts a long battery life, where the 16-cell battery can last up to 13 hours between charging.
Freestyle Comfort

Another hot item is the FreeStyle Comfort, which is a small portable oxygen concentrator with a maximum output of 1,050 mL/min in setting 5. It also delivers only in pulse settings, and it can last up to 8 hours at setting 2. Plus, this device also weighs only 6 pounds, so it isn’t too heavy to carry around with you all day.
SimpyGo by Philips

If Inogen One G5 is the bestselling pulse flow unit, then SimplyGo is the bestseller for continuous flow. It also has 6 different pulse settings, and it can deliver up to 2 L/min, a remarkable amount compared to its competitors. The battery can also last up to 3.5 hours, and it only weighs less than 10 pounds, perfect for outdoor activities.
Inogen One G4

Inogen One G4 is the predecessor of the recent Inogen One G4. This unit is smaller, with dimensions of 7.2” H x 5.91” W x 2.68” D and weighs only 2.8 pounds. With double batteries, it still only weighs 3.29 pounds, so it is still lighter than most of the POCs available on the market. If you prefer comfortability and a smaller POC, then you should go with this product.
Eclipse 5 by Caire

Eclipse 5 is another portable oxygen concentrator that can deliver the highest amount of continuous flow oxygen, capable of delivering 3 L/min at setting 9, and this is best recommended for those who need higher amounts of oxygen than normal. However, the device is also larger than the usual portable oxygen concentrators in the market, weighing around 18.5 pounds, and is carried using a cart.

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