An oxygen concentrator is a medical device that provides extra oxygen to patients who have low oxygen levels in their blood. It works by taking in air from the surroundings and delivering purified oxygen (around 90%–95%) to the user. In Nepal, oxygen concentrators have become increasingly important for home care patients, especially for those with respiratory conditions.
What is an Oxygen Concentrator?
An oxygen concentrator is a machine that removes nitrogen from ambient air and concentrates oxygen for medical use.
👉 It:
- Draws in air
- Filters nitrogen
- Produces concentrated oxygen
- Delivers it to the patient
🔹 How Does an Oxygen Concentrator Work?
The working process includes:
- The machine pulls in air
- A compressor increases pressure
- Filters remove nitrogen
- Oxygen is concentrated
- Oxygen is delivered via a nasal cannula or mask
👉 It provides a continuous supply of oxygen without needing refills.
🔹 Who Needs an Oxygen Concentrator?
Oxygen concentrators are useful for patients with:
- COPD (Chronic Obstructive Pulmonary Disease)
- Asthma
- COVID-19 recovery
- Pneumonia
- Heart-related conditions
👉 Anyone with low oxygen saturation levels may benefit from it.

