Medical air is used in medical settings to support breathing in patients who are experiencing respiratory distress, such as those with asthma, COPD, or other respiratory conditions. Medical air is produced by compressing ambient air and removing impurities, and is administered through a mask or nasal cannula. It is often used in emergency situations, such as during cardiac arrest or other life-threatening events. Medical air is non-flammable and non-toxic, and is considered safe for use in medical settings. It is an essential tool for healthcare professionals in treating patients with respiratory distress.