For longer outings, you can use the AirBelt (optional accessory), which can extend total operation time up to 7 hours .
The unit is FAA-approved for use on commercial flights and operates on universal power (AC/DC), making it suitable for international travel and car charging. Battery Life & Power Options buy airsep focus portable oxygen concentrator
Because the unit is so small, it relies on external batteries to keep its weight low: For longer outings, you can use the AirBelt
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 Buying Guide: Where to Purchase Purchasing an AirSep
It delivers a fixed pulse flow setting of 2 liters per minute (LPM) .
The AirSep Focus, manufactured by CAIRE, is recognized as the world's smallest and lightest medical-grade portable oxygen concentrator. Weighing just 1.75 lbs (0.8 kg) for the unit itself, it is designed specifically for active patients who require low supplemental oxygen (pulse dose setting of 2) without the burden of heavy equipment.
Typically comes with two micro batteries, each providing roughly 1.5 hours of use, for a total of 3 hours .