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VP-2 G3 VP-1


$999 $2495 $549
Oxygen concentration 93%±3% 90%±6% 93%±3%
Adjustable Flow 1-5L 1-5L 1-5L
Operation mode

Pulse flow

Dual mode: Sensor detect+Auto pulse

Pulse mode Pulse mode
Noise ≤58db ≤42db ≤58db
Weight 4.85 Pounds 4.9 Pounds 7.05 Pounds
Intelligent control&display ×
Timing function ×
Charging time 3.5-6 hours 4-5 hours 4-8 hours
Battery life 3.5 hours 4.7 hours 3 hours
Extra battery cost $169 $407 ×
External battery charger  Not needed Needed( Buy separately) ×
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