Portable oxygen with 2L continuous and 8L pulse setting

OX-2A 2L Continuous and 8L pulse setting. Continuous Flow Settings 0.5~ 2.0L Pulse Flow Settings 1-12 pulse settings equal to 0.5L - 8L Oxygen Concentrator 90% ~ 96% at any settings Outlet Pressure 8.5 PSI Sound Level ≤ 40 db(A) Size 9.1in x 8.7in x 12.8in (23cm x 22cm x 32.5cm) Weight 11 lbs (5.2kg) Machine only, 13.7lbs(6.2kg) with battery Power consumption 100 W Altitude Up to 12,000 Ft (3657m), Support use in plateau, mountain and high altitudes OSD (oxygen sensor) Power failure, High temperature, Low oxygen, Apnea alarm Accessories Nasal cannula, Humidifier, Portable bag, Adaptor, Battery, Battery charger, Trolley cart Warranty 2 years warranty Continuous Flow 0.5L 1.0L 1.5L 2.0L Oxygen Purity 95% 95% 94% ...