* Type: Home Oxygen Concentrator. * Model: Yuwell 8F-5AW. * Oxygen Flow Rate: 0.5 to 5 liters/minute. * Oxygen Concentration: Approximately 87% to 95.5% depending on the flow rate. * Weight: Approximately 15.5 kg. * Noise Level: Approximately 48–52 decibels. * Usage: Intended for home use by patients requiring oxygen therapy with a prescription. It can operate for extended periods and includes alarms for malfunctions, power outages, and overheating. Price: 800 (negotiable)