Philips Home Oxygen Generator ‏Concentrator EverFlo Philips Alternative to traditional cylinders Produces oxygen using room air without the need for other sources Oxygen generation with purity reaching 90-96%. Low noise level under 43 dBA Easy to carry and move within the room Lighter weight compared to other devices 14kg Oxygen flow rate 0.5-5 liters/minute Low flow feature available for children at an additional cost The device is equipped with visual and audible alarms in case of any malfunction God forbid The device has an audible alarm in case oxygen level drops below 87% Used for only two months Purchased for 3900 SAR ‎ Selling for 2000 SAR