Product Name: 3L Medical Oxygen Concentrator with Ce&FDA Certification: CE Nature: Specialized Instrument Equipment Applicable Departments: Oral Health Department Material: metal Usage Times: Non-Disposable Usage: Polishing Material, Dental Preventive Health Care Materials with Ce: ISO 9001 Trademark: vokodak Transport Package: 1PCS/Box Specification: CE, ISO13485 Origin: China HS Code: 90184990 Product Description Oxygen connen tractor 1L WITH CE,FDA32cm*21cm*32cmFull plastic casing, safe and reliable.Real voice function.LCD screen.Remote-control function to operate remotelyCumulative time to show total working time by display.Single timer for real-time control once oxygen inhalation time.Timed shutdown function for easy use.Calendar function and more intuitive master of time.Button with back-light for clear and intuitive function display.Power-off alarm functionFunction of releasing anion.Heat protector equipped in the compressor.Oxygen concentration monitoring and alarming.Oxygen Concentration:≥90%, when the oxygen flow is0.5L/min~1L/minNoise:≤60dB (A)