The oxygen purity can reach to and exceed 94%.
We have a model which has nebulization function,so it can adjust to the people who cant take medicine himself.
It is more economical for its low power and low noise,it only cost 1 degree electricity for three hours inhaling oxygen.
It have liquid crystal displayer,trouble displayer and accumulative time displayer.Besides,it has many functions,such as oxygen purity alarm,high and low voltage alarm and sound and vision alarm etc.
It applies to home and public places for its smallest size in the line and swivel caster at the bottom.