Abstract:
Oxygen is an important and essential gas for all living beings. Many different techniques are used to deliver
oxygen to patients either to treat pathological conditions or to supplement during the perioperative period.[1]
Equipment malfunction is a problem of particular importance during anesthesia and resuscitation.[2] Such
problems hence extend from operation theater to high dependency unit (HDU) if care is not taken. Oxygen
can be delivered in dry or humidified form. Advantages of supplementation of humidified oxygen are that
