We Specializes In Supply Medical equipment such as : Oxygen Concentractor 10L , Made in USA. Features: -User-preferred neutral color to help blend in to any home environment. -Invacare SensO2 Oxygen Purity Sensor to warn you if purity drops. -Compatible with the Invacare HomeFill Oxygen System. -Battery-free power loss alarm for added peace of mind. -Three separate filters assure oxygen purity. Dimension: 26-3/8" (H) x 18-3/8" (W) x 14-3/8" (D). Product Weight: 53 lb. Shipping Product Weight: 63lb. Oxygen: Oxygen Flow: 10 LPM Oxygen Purity - 87%-95.6% At all flow rates. Flow Settings: Flow Range: 2-10 LPM MQO: 100 PCS Certificate : CE, FDA, 510K Made in USA