An oxygen cylinder is typically used when a person requires supplemental oxygen due to having low blood oxygen levels Blood oxygen levels can be monitored using a device like a pulse oximeter, which measures SpO2 or oxygen saturation Oxygen cylinders are usually prescribed by a registered medical professional for short-term use, such as to relieve sudden periods of breathlessness. It may be possible to use a small, portable oxygen cylinder outside your house or when moving around at home. This is called portable oxygen or ambulatory oxygen. Patients suffering from COPD (chronic obstructive pulmonary disease), asthma, pneumonia, and cystic fibrosis are some of the people who may need oxygen therapy. If you are experiencing any of the following symptoms, you should consult a doctor to determine if you need an oxygen cylinder: – Shortness of breath – Rapid breathing – Wheezing – Chest tightness – Confusion – Headache – Dizziness – Fatigue If you are looking for an oxygen cylinder in Karachi, you can check out **Care Gas Services**.They offer oxygen cylinders for medical purposes. Alternatively, you can explore **oxygenpakistan.com** . They offer aluminum and steel oxygen cylinders and tank 03133573494