For sale: Yuwell 7F-10 oxygen concentrator (10-liter capacity). The device is used and in excellent condition. Used for only 8 months. Original purchase price: 4900 SAR. It features a 10-liter capacity and provides high-concentration oxygen up to 95%. The device is practical for home use. Equipped with an advanced alert system for power outages, low oxygen levels, or pressure malfunctions. Easy to move thanks to integrated wheels, and includes a nebulizer function. The device is designed for durability and high efficiency. Device Specifications: Origin: Chinese (from Yuwell, a well-known medical device manufacturer). Oxygen Flow Capacity: Up to 10 liters per minute. Oxygen Purity: 90% - 95.5%. Features: Safety alarms (for power, pressure, and oxygen levels), nebulizer function, and LCD screen. Weight: Approximately 26-33 kg (depending on manufacturing year).