Enhance your workspace and living environment with this advanced Adjustable Oxygen Concentrator, designed to deliver optimal air quality for office, home, and travel use. Featuring a 1-7L/min adjustable flow rate and 35%-90% oxygen concentration (automatically optimized based on your flow setting), this versatile device ensures a tailored oxygen experience to meet diverse needs. Its high-efficiency lithium molecular sieve and dual-cylinder copper compressor work seamlessly to provide stable, pure oxygen output while maintaining ultra-quiet operation at 48dBperfect for focused work, relaxation, or travel.