Small Lightweight Portable 3L Oxygen Concentrator Continuous Flow with Long-time Duration Battery For Travel Use Low Noise C-YS10-B Configuration:Add an Extra Battery(Comes with 2 Pieces Batteries) Model 1007S Flow Rate 1-7L

Model 1007S Flow Rate 1-7L Adjustable Flow Mode Pulse Flow Battery Duration 2-5 Hours Charging Time 4

Model L150 Weight 500g Size 265*215*55mm Rated Voltage 10W Input DC 5V-2A

Quiet Noises 29dBA:High efficiency brushless DC motor

noise≤45dB(A)

Small Lightweight Portable 3L Oxygen Concentrator Continuous Flow with Long-time Duration Battery For Travel Use Low Noise C-YS10-B Configuration:Add an Extra Battery(Comes with 2 Pieces Batteries) Model 1007S Flow Rate 1-7LSpecifications: Model Number C YS10 B Flow Mode Continuous Flow Flow Rate 30. 5L Fixed Oxygen Purity 30%5% Weight 1. 3lbs Size 160*129*54(mm) Noise 40dB Battery Duration 4 Hours