The AirSep FreeStyle 3 Portable Oxygen Concentrator from Caire and Chart Industries is an ultra-lightweight and compact concentrator that is wearable for ultimate portability.

Convenient Features:   The FreeStyle 3 has pulse dose settings from 1 - 3. Its UltraSense technology provides sensitive pulse dose delivery especially in the first phase of inhalation and delivers reliable pulse dose even with 25 feet of tubing. Audible alarms and visual indicators show important indications such as start-up, pulse flow, battery charge state, cannula disconnect, system overdraw, general malfunction, and low battery.

Portable:   This transportable oxygen concentrator can be used in automobiles and is approved by the FAA for aircraft use. The rechargeable lithium battery lasts for 3.5 hours per charge and it can be powered with AC and DC power as well. It can be worn on a shoulder strap, with a backpack harness, or with a carrying case. The device weighs only 4.4 lbs. and measures 8.6" H x 6.1" W x 3.6" D.

Please note - Any smoking while using the unit or evidence that unit has been used in a smoke filled environment will void the warranty.