1. Delivery rate：1L -- 5 L/Min
2. High temperature, Low oxygen Alarm
3. O2 purity monitor
4. Maintenance alarm (Audio + Display)
5. Easy maintenance design

1. Delivery rate：0.5 -- 5 L/Min
2. High temperature, Low oxygen Alarm
3. Purity between 87 and 93%
4. Net weight 15kg.
5. Water-proof switch

1. PSA O2 concentrator：
• SD card for data storage
• 24 hours continuous working
• Data transfer base on Bluetooth + Internet
2. Delivery rate：5 -- 10 L/Min
3. Noise Level：40dB @5L ; 55dB @ 10L.