1、cumulative time function；
2、Exceed press safety valve helping safe ensure.
3、Install power cut warning function.
4、high pressure and low-pressure alarming function
5、（7F-5 Double flux) shunt design, two users are provided with oxygen at the same time.
6、（7F-5W with nebulizer function）provides atomization function, maximum nebulizing rate≥0.2mL/min
7、（7F-5 with cord controller）oxygen concentrator and oxygen intake device can be separated, to realize the remote control and use
- Efficient oil-free negative pressure pump
- Noise below 65dB,enjoy quiet treatment
- Anti overflow device with high negative pressure and large flow rate
- Compact,portable and easy to operate,convenient for emergency treatment
- CE certificate
- Input power: 90VA Power supply: DC 12V; 44VA
- Max negative pressure value: ≥0.075MPa
- Pumping rate: ≥17L/min(7E-A);≥15L/min(7E-B/7E-D)
- Operation noise: ≤ 65dB (A)
- Reservoir volume: 1000mL, 1piece