（1） 1L oxygen generator
（2）2L oxygen generator
（3）3L oxygen generator
（4）5L oxygen generator
（5）8L, 9L oxygen generator

（1）Install the main engine in rotating floor type or mount the pylons on the wall to hang in the outdoor, install the gas filter.
（2）As required on the wall or support screw on the oxygen supply gusset plate, and then hang on the oxygen supply.

（3）Connect the oxygen outlet interface of the oxygen supply device with the oxygen supply pipeline, and connect the 12V power line of the oxygen supply device with the 12V power line of the main engine. If multiple oxygen supply devices are connected in series, simply add a tee connector and fix the pipeline with a wire buckle.

（4）Insert the 220V power cord of the main engine into the wall socket and the red light of the oxygen supply will be on.
（5）Please add pure water in the humidifying cup to the designated location.
（6）Then put it on the oxygen outlet of the oxygen supply.
（7）Please cover the oxygen delivery pipe to the oxygen outlet of the humidified cup.

（8）Press the start button of the oxygen supply device, the green indicator light is on, and the oxygen generator starts to work.
（9）According to the doctor's order, adjust the flow to the desired position.
（10）According to the package instruction of oxygen mask or nasal straw, hang the nasal tube or wear the mask to absorb oxygen.