Oxygen is an essential requirement at all levels of healthcare system and only “high-quality medical grade oxygen” should be given to the patients. This grade is very much different from the commonly...

Oxygen is an essential requirement at all levels of healthcare system and only “high-quality medical grade oxygen” should be given to the patients. This grade is very much different from the commonly used industrial grade oxygen. Medical grade oxygen is high-purity oxygen that contains between 90 % V/V to 98 % V/V of oxygen and the rest is a mixture of nitrogen and argon gases according to the definition of European Pharmacopeia..