For decades, oxygen concentrators have been used to provide oxygen therapy for people with various medical issues, and it works by filtering out nitrogen in the air and giving you a flow of clean oxygen 24/7. In order to make these machines more portable and mobile for the users, portable oxygen concentrators were invented, which you can carry around with you all day.
Today, several companies have already designed their own versions of POCs, with the main goal of providing adequate amounts of oxygen at maximum comfort for the user. Although some portable oxygen concentrators are as large as a trolley, this article will review five of the smallest portable oxygen concentrators in the market.
Each of the smallest portable oxygen concentrator reviews have always included the AirSep Focus as one of the smallest POCs available. With a length of 2.5 inches, width of 4.8 inches, and a height of 6.4 inches, you won’t even feel like you’re carrying a machine with you all the time! Not only is this machine small, but it is also lightweight to carry, weighing at only around 1.75 pounds.
This portable oxygen concentrator also delivers oxygen at a single flow rate and two pulse settings, which helps in minimizing the size of the motor inside the machine. Because of that, customers have stated that this product is easy to use and simple to operate. Plus, when you buy this product, you get to choose between two battery options: a micro-battery that can last for up to 1.5 hours, and an 8-cell battery that can last up to 3.5 hours between charging. Overall, this device is specifically designed to be small and lightweight, so it wouldn’t be too much of a burden like other larger machines.
Inogen One G4
Inogen is one of the oldest companies that sell portable oxygen concentrator units, and one of their newer products is the Inogen One G4. This device is designed to be small and compact for easier use, but also maintain a comfortable delivery of oxygen for the user. With dimensions of only 7.2” x 5.91” x 2.68”, this product is one of Inogen’s smallest machines available, just behind AirSep Focus.
When you buy this portable oxygen concentrator, the set also comes with a carry bag with an adjustable strap, perfect for any size and height. Plus, with a POC as small as this one, you can carry this inside your handbag, although not recommended all the time. Wherever you go, you can easily carry this machine with you, and the oxygen flow comes in three different pulse settings, and it has a battery life of 4.5 hours between charging.
Inogen One G5
The Inogen One G5 is the successor of the previous Inogen One G4 model. Although slightly larger at dimensions of 8.15” x 7.19” x 3.26” and weighing around 4.7 pounds, this machine has more pulse flow settings, capable of delivering larger amounts of oxygen per minute. Released just in 2019, the company boasts that this portable oxygen concentrator is “small but powerful”, capable of delivering 1.05 L/min of oxygen in its maximum setting.
This device also comes in a carry bag with an adjustable strap, so you can be comfortable when you carry it wherever you go. Plus, compared to its predecessor, the Inogen One G5 has a 16-cell battery as an additional accessory, which can last up to 13 hours between charging, so you can travel outside longer without having the fear of changing or charging your batteries. Moreover, these batteries can also be detached and replaced, allowing you to use multiple batteries rather than waiting for one to finish charging.
The Respironics SimplyGo is one of the smallest portable oxygen concentrator units that can deliver oxygen at a continuous flow. This is usually a common problem for people that require larger amounts of oxygen, because they would need larger machines to accommodate a motor that could deliver in a continuous flow. However, the Respironics SimplyGo was specifically designed to combat this issue, with dimensions of only 10” x 6” x 11.5” and weighing less than 10 pounds. Basically, this device is small and light enough to be carried on your shoulder like a handbag!
Compared to Inogen One G5, the Respironics SimplyGo can deliver oxygen between 0.5 to 2.0 L/min, and the machine comes in both pulse flow and continuous flow settings. Specifically, the pulse flow can be adjusted into 6 different settings, depending on the amount of oxygen you need. Plus, the machine includes batteries that can last up to 6 hours when set to a pulse setting.
LifeChoice Activox 4L
Last but not the least, the LifeChoice Activox 4L has also made it into this list of smallest portable oxygen concentrators. This machine has dimensions of 7.9” x 4.9 “ x 9.1”, and also weighs less than 5 pounds. Compared to the previous products, this portable oxygen concentrator can last longer between charger, capable of operating at up to 12 hours at pulse setting 1.
Similar to other products mentioned here, the LifeChoice Activox 4L only has pulse flow settings, with 4 different settings to choose from. According to its customers, the motor of this device is so quiet that you would barely hear it pumping oxygen, and the LCD screen makes it easy to understand and simple to operate, even for first-time users.
LifeChoice Activox 4L
In this article, we have reviewed some of the smallest portable oxygen concentrators in the marker. But you might ask, “Is size really important?”. My answer to that is a yes. Portable oxygen concentrators are designed to provide mobility and to prevent you from staying in one place when using the device, so you should go for the device that would provide maximum comfort.
Plus, smaller POCs are less of a burden to carry around all day, especially if you will be carrying that device every day. Therefore, when you start inquiring for a portable oxygen concentrator, make sure to include size and weight as one of the major factors that would affect your decision.