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Quietest Portable Oxygen Concentrators

If you already thought most portable oxygen concentrators were quiet, you should meet our quietest concentrators out of our wide selection – the Inogen One G2, Inogen One G3, AirSep Focus and Lifechoice Activox. Just as with all of our oxygen therapy products, we want to bring you the best of the best in all aspects, at prices you can afford.

Exactly how quiet are our quietest portable oxygen concentrators? They average around 38 decibels. If you are wondering how loud 38 decibels is, step inside of a library and pay attention to the noises around you. The noise level in a library, or that of a quiet conversation is about as loud as these portable oxygen concentrators will get.

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Learn More About Whisper Quiet Concentrators


The exceptional models, Inogen One G2 and G3, are both less than 38 decibels and are whisper quiet, yet still deliver pulse dose settings of up to 5 and 4 (respectively), and are popular for their light weight and long battery life. The AirSep Focus is the smallest portable oxygen concentrator that we carry, so it’s no wonder that it is also one of the quietest.

The Lifechoice Activox is an amazing small oxygen concentrator, which can deliver a pulse dose of oxygen up to a setting of 3, while only being a little under 5 pounds, and no louder than 46 decibels. The Activox is true to its name by being one of the best portable concentrators for those who exercise and lead a very active lifestyle.

The AirSep Freestyle is only a little bigger, weighs in at 4.4 pounds and has the capacity to put out a maximum of 332 ml of oxygen per minute. Since these AirSep models are so tiny, if you want to add even more battery life, you can supplement it with the AirSep AirBelt, which is a battery pack that can be worn around your waist. The AirBelt is small and only weighs a little under 2 pounds.

The Inogen One G3 is as big as the smallest ones get, at just a little under 5 pounds with the standard 8 cell battery. It stands at 7.25 inches tall, 3 inches wide and 8.75 inches deep. It will give you pulse dose settings between 1 and 4. It can also detect when your breath rate drops and work to meet your changing needs – perfect for those who need to use an oxygen concentrator while exercising. The Lifechoice Activox is another great choice for the active patient, is just slightly lighter than the G3, and will give you 3 settings of pulse dose oxygen.