Main problems in the use of home oxygen generators

Main issues during the use of a home oxygen generator:

1: How do I know that the oxygen generator is producing oxygen?

　　Answer: Generally, oxygen generator manufacturers have dedicated after-sales service personnel who can use oxygen meters to test the oxygen concentration produced by the oxygen generator. Of course, we can also take advantage of oxygen's ability to support combustion and use a lit cigarette to test for oxygen. However, such testing is not accurate and poses a certain level of danger, so it is not recommended. If you are particularly concerned about oxygen concentration, you can choose a model with an oxygen concentration alarm function. Of course, you will need to pay an additional 1000 yuan or so for this feature, and the oxygen concentration probe will need to be replaced every two to four years at a cost of around 500 yuan.