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De 1A Oxygen Concentrator with 93 Percent Plus 3 Percent Oxygen Accuracy. Compact & Lightweight: Weighs only 6 kg net, making it easy to position at bedside or transport. Advanced Safety Alarms: Equipped with visual and audible alarms for low purity or system malfunction. 12-Month Warranty: Covers manufacturer defects such as assembly issues or quality problems. OEM/ODM Available: Customization from designs, samples, or full customization is supported. ISO 13485 Certified: Manufactured under high quality medical standards with 0 defect guarantee. Professional Support: Served over 20 million users globally with dedicated after-sales service.