Understanding the critical threshold of oxygen levels is essential for maintaining health and preventing life-threatening situations. Oxygen saturation, measured by a pulse oximeter, indicates the percentage of oxygen-carrying haemoglobin in the blood. A normal range is typically 95-100%. When oxygen levels drop below this range, the body starts to experience hypoxemia.

Mild hypoxemia occurs at levels between 91-94%, often causing symptoms like shortness of breath and dizziness. Moderate hypoxemia, with levels from 86-90%, can lead to more severe symptoms, such as confusion and a rapid heart rate. Levels below 85% are considered severe and can result in cyanosis, where the skin turns blue due to lack of oxygen. This condition requires immediate medical attention.

So, how low can your oxygen level go before you die? Critically low oxygen levels, typically below 60%, can be life-threatening. At this point, vital organs are deprived of oxygen, leading to potential respiratory or cardiac arrest. Without timely intervention, such as supplemental oxygen or advanced medical care, survival chances diminish rapidly.

Recognizing the signs of decreasing oxygen levels and seeking prompt medical help can prevent fatal outcomes. Regular monitoring, especially for those with respiratory conditions, is crucial in managing and maintaining safe oxygen levels. Always prioritise health and act swiftly if oxygen levels fall dangerously low