Longfian 5 LPM Oxygen Concentrator – Trusted Oxygen Support The Longfian 5 LPM Oxygen Concentrator is a reliable and high-performance medical device designed to deliver continuous oxygen therapy for patients at home or in hospitals. Built with advanced PSA technology, it ensures stable oxygen supply with high purity levels. 🔹 Key Features Adjustable Flow Rate: 0–5 Liters per minute Oxygen Purity: 93% ±3% Low Noise Operation for comfortable use Digital Display for easy monitoring Built-in Safety Alarms (power failure, low purity) Energy Efficient & low maintenance Compact design with wheels for easy movement