1. High oxygen concentration and stable flow.
2. The whole machine operates with low noise.
3. Long battery life.
4. Compact and portable.
Oxygen supply mode: pulse + fixed frequency.
Gear position: 7th gear.
Oxygen concentration: 93%±3%.
Oxygen flow: 1.1L/min±10%.
Battery life: ≤5 hours.
Noise: 40-57dB.