It delivers a fixed pulse flow setting of 2 liters per minute (LPM) .
Typically comes with two micro batteries, each providing roughly 1.5 hours of use, for a total of 3 hours .
Features "UltraSense" technology, which is highly sensitive and ensures oxygen is delivered with every breath, even during shallow breathing.
Because the unit is so small, it relies on external batteries to keep its weight low:
For longer outings, you can use the AirBelt (optional accessory), which can extend total operation time up to 7 hours .
Batteries take approximately 4 hours to fully recharge. Buying Guide: Where to Purchase Purchasing an AirSep Focus requires a medical prescription . AirSep Focus Portable Oxygen Concentrator - SpryLyfe
Standing only 6.4 inches tall, the device can literally fit in the palm of your hand or be worn comfortably on a belt or shoulder strap.
