Final answer:
A simple face mask is a type of mask used to deliver oxygen to patients who need supplemental oxygen therapy. They provide a moderate flow of oxygen, but not as precise control as other devices. Simple face masks can be used in prehospital settings, but may not be the preferred choice in all situations.
Step-by-step explanation:
A simple face mask is a type of mask that is used to deliver oxygen to patients who need supplemental oxygen therapy. It covers the patient's nose and mouth and is connected to an oxygen source.
Simple face masks are generally used in situations where a higher concentration of oxygen is not required. They provide a moderate flow of oxygen, usually between 5-10 liters per minute. However, they do not provide as precise control over the amount of oxygen delivered as other devices like Venturi masks or nasal cannulas.
Simple face masks can be used in prehospital settings, such as ambulances, to provide oxygen to patients who require it. However, they may not be the preferred choice in certain emergencies or when precise control over oxygen concentration is needed.