PRODUCT GRADING Grade A - Excellent Condition > Item will have minor if any signs of use and wear > Refurbished to the highest standards. Retail Box WHAT IS IN THE BOX Osito Portable Oxygen Concentrator, 90% High Purity, White PRODUCT DESCRIPTION The Function of the Home Oxygen Generator is to relieve nerve fatigue, relax the body and mind, maintain vigorous energy, and improve work efficiency; improve the oxygen supply of the brain, regulate the function of the brain nervous system, improve memory and thinking ability, and improve learning efficiency. Adjustable Concentration Continous flow 1-5L/min adjustable: 40%-90%. (1L 90% ± 5%; 2L 75% ± 5%; 3L 55% ±5%; 4L 45% ± 5%; 5L 40% ± 5%) Special Note: This is an auxiliary household equipment, non-hospital type oxygen generator, only suitable for daily health care. It is not recommended for people with serious illnesses or people who rely on medical oxygen to sustain their lives. Smart Control Beautiful large color IMD panel and with infrared remote control more convenient. It can be timed for 2 hours. If you don\'t want to set the time, you can press \"Tim-\" to subtract the set time or restart the oxygen generator for continuous use. Note: Add water to the water tank every two hours. Molecular Sieve Oxygen Generator Molecular sieve oxygen generator is an advanced gas separation technology. The physical method (PSA method) directly extracts oxygen from the air, which is ready for use, fresh and natural. No atomization function. PRODUCT INFORMATION Dimension - 12.5X8.4X12.2 (in) Environment temperature - 0-40°C Atmospheric pressure range - 96-106kpa Air Volume - 51-150m³/h Concentration(%) - 1-5L/min / 40%~90%(±5%) Product Net weight - 6.5kg Rated Power(W) - 120W Applied Voltage - AC220V±10V