Product FAQ

DH-660A Medical Portable Equivalent 6L Oxygen Concentrator FAQ
Q1: Who is this medical portable equivalent 6L oxygen concentrator suitable for?
A: It is suitable for patients who require higher-flow, long-term, or continuous oxygen therapy, including patients with COPD, respiratory diseases, impaired cardiopulmonary function, and those recovering after surgery. With adjustable flow levels from 1 to 6, it is suitable for home, in-car, outdoor, high-altitude, and mobile medical use.
Q2: Can users be alerted if the oxygen concentration falls below 90%?
A: Yes. The device provides real-time oxygen concentration monitoring. When the oxygen concentration falls below 90%, it triggers a low-oxygen alarm to promptly alert the patient, family members, or caregivers to check and address the issue, reducing the risks associated with abnormal oxygen delivery.
Q3: Will the oxygen concentration decrease at higher flow levels or at high altitudes?
A: The oxygen concentration remains at ≥90% across all flow levels, with a maximum equivalent flow of 6L. Within an altitude range of 0–5,000 meters, the oxygen concentration does not decrease due to increased altitude, helping provide more stable oxygen delivery at higher flow levels and in high-altitude environments.
Q4: Is the battery life sufficient for outdoor use?
A: The device weighs approximately 2.3 kg and measures 198 × 100 × 232 mm, making it easy to carry. Battery runtime is approximately 4 hours 45 minutes at Level 1 and 1 hour 40 minutes at Level 6. It is suitable for outdoor activities, travel, in-car use, and mobile medical applications.
Q5: What warranty and after-sales support are available for long-term use?
A: The battery and adapter are covered by a 1-year warranty from the date of purchase. Related after-sales support is also available to help reduce concerns about long-term equipment use and maintenance.