p Description DO2-5AH is the model which can produce average 93% purity oxygen to meet big flow requirements of hospital, home, housecare use and etc. It can stably work in 24 hours a day and needs few maintenance of the main machine among its whole lifetime. Users do not need to open the machine shell to attain filters replacement. Features Dual oxygen output, offer average flow oxygen for two persons simultaneously, Optional function for nebulizer while inhaling oxygen treatment, sterilization, dust-removing, oil free and smell removing. Oxygen humidifying (strengthen safety level), LCD screen display, Super-low noise, energy saving, environmental protected, Automatic switch between plain and plateau areas. Best solution for high altitude anoxia. Suitable range: homecare, hospital, clinic, nursing house, outdoor /p p Warranty: 1 year /p