Brand: DeVilbiss Healthcare (USA) Model: 525KS Capacity: 0.5 – 5 Liters Per Minute Oxygen Purity: 93% ± 3% Condition: new/ Fully Tested / Good Working Condition ✅ Key Features: ✔ High-quality imported medical device ✔ Continuous oxygen supply (24/7 use) ✔ Stable oxygen purity with safety alarm system ✔ Strong & durable compressor ✔ Low noise operation ✔ Easy to use – suitable for home patients 🔧 What You Get: ✔ Fully serviced & tested machine ✔ Humidifier bottle included ✔ Power cable included ✔ User guidance provided 🛡 Warranty: ✔ Company warranty available ✔ After-sales service support