Oxygen concentrator

oxygen concentrator oxygen flow: 3L/min Oxygen concentration: 30% 12V DC Power: 20W portable and easy to operate oxygen concentrator oxygen flow: 3L/min Oxygen concentration: 30% Voltage: 12V DC Power: 20W portable and easy to operateSpecifications: 1) Air flow volume: 3±0.6L/min 2) Oxygen consistency: 30 ±2% 3) Power: 20W±15% 4) Voltage: 12V DC 5) Noise: <45dB 6) Using temperature -10 60°C 7) Using humidity: <80RH 8) Storage temperature: -10 70°C 9) Storage humidity: <90RH Parameters: 1) 30% concentration rich oxygen supply 2) Performance: efficient oxygen supply 3) Design: concise top panel for simplified operating procedure 4) Carry: portable and light 5) Energy efficient 6) Nano ear phone: oxygen supplier free from contamination 7) Low noise: mute DC brushless motor and biological oxygen generation 8) Safety broad-spectrum: oxygen concentration satisfying varied demands 9) Ergonomic design: harmonious airflow 10) Dimensions: 235(L) x 120(W) x 295(H)mm 11) Weight: 3.6kg (including 0.5kg spare parts) Features: 1) Styled design, selected material, compact structure, stream-line front panel, elegant profile, fashionable style, earphone shaped oxygen breathing apparatus made of Nano material, sterilizing and contamination free 2) Air purifying and refreshing, photocatalyst active carbon functions to remove dusts, bacteria and odor from room air 3) Mild airflow supplied for a harmonious atmosphere 4) Advanced technology incorporated for precise oxygen concentration control to about 30% for rich oxygen achievements 5) Simplified concise control system with intensive control design operational under the control of only 2 buttons