Rapid oxygen supply device is a kind of oxygen generator system , the main content is NaClO3 , when in electric shock ,it will release oxygen rapidly. During this process ,it just release the gas and leave stable solid contents .Comparing with other oxygen generator ,it is more friendly , faster and safe, in same volume it will release larger oxygen . Based on its chemical stability and large oxygen generate content, as well as the convenient in storage and shipping, this device is using widely in some extremely situations, projects and districts , like the underground base , mine , underground construction project, people air defense base , marine , medicals ,also we have three modes for choices : portable mode (the device can maintain 30 minutes using ), Rapid under base mode (release volume is from 1000L to 8000L), intelligent under base mode (release rate is controllable ).