A pulse oximeter is a compact, non-invasive device used to measure oxygen saturation (SpO2) and pulse rate. It is widely utilized in hospitals, clinics, and homes to monitor lung function and circulatory health.

How a Pulse Oximeter Works

The device clips onto a finger, earlobe, or toe and works by passing infrared light through the skin. The sensor detects the levels of oxygenated and deoxygenated hemoglobin, providing a reading of blood oxygen saturation percentage.

Ideal SpO2 Levels

• Normal: 95% to 100%
• Mild Hypoxia: 90% to 94%
• Severe Hypoxia: Below 90%, requiring immediate medical attention

Who Should Use a Pulse Oximeter?

• COVID-19 Patients: Monitors oxygen levels in case of respiratory distress.
• People with COPD or Asthma: Tracks lung function over time.
• Athletes & High-Altitude Climbers: Ensures optimal oxygen levels during intense activities.
• Individuals with Heart Disease: Helps in monitoring cardiovascular function.

Benefits of Using a Pulse Oximeter

• Early Detection of Oxygen Deficiency: Helps prevent respiratory failure.
• Non-Invasive & Quick Readings: Takes only a few seconds to display results.
• Portable & Easy to Use: Small, battery-operated device for home and clinical use.