This product is a portable oxygen concentrator from the Varon brand, model NT-5. Here are its most prominent specifications and features: Oxygen Concentration: Provides an oxygen concentration of 30%. Flow Rate: The flow rate is 3 liters per minute. Ease of Transport: It features a small size and light weight, making it suitable for home and outdoor use. Additional Features: It operates with low noise and has an interchangeable battery for continuous operation. Alert: This device is intended to enhance general health and comfort, and is not intended for critical medical use. Its value on Noon is 1599 SAR Selling for 900 SAR, absolutely non-negotiable.