The AirSep FreeStyle 5 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 5 has the highest oxygen output of any wearable oxygen concentrator available, with 1,000 mL per minute on pulse dose settings 1 - 5. 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. It can be worn on a shoulder strap, with a backpack harness, or with a carrying case. The rechargeable lithium battery lasts for 3 hours per charge and it can be powered with AC and DC power as well. The device weighs only 6.2 lbs. and measures 10.7" H x 6.6" W x 4.4" D.