Generally speaking, if it is only used for oxygen health care, rather than pathological hypoxia, then 1L machine can be considered.
However, if it is oxygen therapy, it is best to use 2L or above model. Long-term oxygen inhalation requires a machine with a larger air volume (3L or more).
Only when the model selection matches the user's situation can the best effect be achieved.
In addition, as far as the machine is concerned, we should also pay attention to the core components of the oxygen generator
Molecular sieve is the "heart" of oxygen generator. It is best to choose imported molecular sieve and oil-free compressor.
At present, in the oxygen machine market, such as Haiyao House, Oxygen Life, Fish Leap, Oxygen Genie, Song Xin, etc. all have a good reputation.
It's best to have some common sense when shopping at home for the first time, because it's related to your health and you can't be careless.