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What is the capacity of your Reservoir bag?
The capacity of reservoir bags varies significantly based on their intended use, especially for EWOT and hypoxic training. We have 1000L for EWOT. There is also 120L for hypoxic training.
What are the dimensions of your oxygen chamber?
Lying oxygen chamber: length 200 CM* diameter 80 CM. Sitting oxygen chamber: length 160 CM* height 120 CM * width 65CM.
What are the symptoms of hypoxia?
Shortness of breath, chest tightness, suffocation, difficulty in breathing. Light activity means obvious palpitation, shortness of breath and rapid heart rate. Frequent weakness, fatigue, inability to concentrate. Sleep disturbance, insomnia, headache, dizziness, etc.
What kind of people need oxygen therapy?
SpO2 ≤ 90% at rest or during activity or clinical assessment of tissue hypoxia.
What is the pressure value of your oxygen chamber?
Core pressure specifications: Outlet pressure of supporting oxygen concentrators: 0.14-0.4 MPa (1.4-4 bar / 20-60 psi), ensuring stable chamber operation.
What is the difference between continuous flow and pulse flow oxygen?
Prescription depends on blood oxygen levels, breathing patterns, and lifestyle—consult a doctor to select the right mode.
How do I maintain my oxygen concentrator?
Regular maintenance includes cleaning or replacing filters weekly, checking tubing for damage, and ensuring proper ventilation around the unit. Follow the manufacturer's manual for specific maintenance schedules.
What is the warranty period for Longfian products?
All Longfian oxygen concentrators come with a standard 2-year warranty. Extended warranty options are available for purchase. Please contact our sales team for details.

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