Small 1-7l Portable Oxygen Machine With Accessories-travel Use Oxygen-generator Device,93%

Features

• Stable Concentration: Under Settings from 1 to 7, the generator is stably maintained at 90%
• High-Capacity Dual Batteries: 2 x 6400mAh batteries offer 1.5-5hrs runtime (1-7 settings), enabling worry-free outdoor use
• Easy Operation & Portable Design: Simple buttons, clear LCD display, non-slip pads, and shoulder strap for convenience