Product Description of Best Quality Mini Household Oxygen Concentrator 7l In Stock For Home Use Item 1L Oxygen concentrator Place of Origin China Province: GuangDong Brand Name DEDAKJ Model Number DE-1A Rated power (W) <53dB Operation voltage (V/Hz) Customized 110-220V Oxygen flow (L/Min) 1L士0.2L Oxygen concentration (%) 30%-90%(±3%) Adjustable Outlet pressure ( Mpa ) ≤0.041 Quality Certification SGS Alarm Power failure LCD display accumulating timing; present timing; timing; Sound level (dB) ≤45 Net Weight (Kg) 8 kgs Gross Weight (Kg) 9 kgs Dimension (mm) 404x 182x383 mm Vehicle Power AC220 ± 22V(or 110V) Features 1. 48-hour continuous supply of oxygen 2. High flow rate 1L-7L for double oxygen inhalation 3. High flow rate, high oxygen concentration 4. High-frequency negative ion transmitter 5. HD LCD big touch screen 6. Well-designed power-saving mode 7. Pure copper oil-free compressor 8. Aluminum-magnesium alloy cooling fan with low noise Accessory List Oxygen Concentrator Remote Control Power Cord User Manual Quick Start Manual