The v3o2 light of turtle oxygen machine is not on.

Electricity is not added. Turtle oxygen machine v3o2 was made by Turtle Medical Research Institute and was established in 2005. It is a high-tech enterprise integrating full-scene oxygen supply scheme, research and development, manufacturing, sales and service of respiratory and sleep medical equipment. Because it has been used for a long time, the light will not light up if the power is not turned on. In general, just check whether the power supply is crossed.