3L5L7L10L oxygen generating machine 1,Install Aluminum/zeolite oxygen part 2.PSA oxygen generator unit 3L5L7L10L oxygen generating machine Configuration of oxygen conentrator:1. Built-in oil free compressor inside2. Condensator3. PSA oxygen generator unit4. Control: Door lock, scram button, Ampmeter, Working indicator, On/Off, Power indicator, Oxygen flow meter, Voltmeter, Oxygen outlet, Fuse, ...