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 continuous operation
 

7F-5 Technical characteristics: 

power supply：～220V±22V，50Hz±1Hz
size：445×372×680mm
oxygen flow：1～5L/min

oxygen concentration：≥90%
weight：28kg
input power：500VA
output pressure：30～70kPa
operation noise：≤60dB(A)