adopt PSA to separate oxygen and nitrogen in air at normal temperature Working PrincipleUse imported ziloite as adsorbent, this series oxygen ... 06≤20 hProduct features:Jianghang Molecular Sieve Oxygen Generator is not a common home appliances but a proffessional medical device, it ... have below features:1. Use air as material, need not any other asscssories,. lower cost;2. Adjustable oxygen flow, any ...