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