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
1 Set Yuwell Oxygen concentrator
Good seller service with prompt response and help. Fast delivery too.
looks quite stable and sturdy. just need to get an allen key of the right size so i can tighten it properly
servis laju.produk bagus
EXCELLENT service by seller. My itchy finger sister removed something even though there was a do not remove sticker on it.