With UltraSense technology, the Freestyle is the world's lightest and smallest portable oxygen concentrator. It provides oxygen only during inhalation from 1 to 3 liters per minute, equivalent to continuous flow purity of 90%.

It offers autonomy up to 3½ hours (flow 1 liter per minute) using the internal lithium battery. Additionally, a belt-type battery is provided that increases the device's autonomy by 10 hours (flow 1 liter per minute).

The uniqueness of Freestyle concentrators is due to the advanced UltraSense technology, which ensures quick and reliable oxygen delivery during inhalation, where the lungs receive the highest pressure.

The UltraSense technology also ensures maximum possible delivery, even when using an extension tube up to 7.60 meters.

It is an ideal choice of portable concentrator thanks to the 4 operating modes: internal lithium battery, AC power supply from 100 - 240V, 12 - 16V DC supply via car or boat charger.