Which tool is commonly used to provide artificial respiration?

The CPR barrier device is a commonly used tool for providing artificial respiration. This device allows the rescuer to deliver breaths to a patient while minimizing the risk of transmitting infections. It typically includes a one-way valve that prevents exhaled air from returning to the rescuer, making it safer to perform mouth-to-mouth ventilation. It’s specifically designed for scenarios where traditional methods might pose a risk, and it effectively delivers air into the patient's lungs during emergency situations, such as cardiac arrest, when CPR is necessary.

The other options, while related to medical assistance and respiratory needs, serve different purposes. An oxygen mask is used to deliver supplemental oxygen but does not provide artificial respiration itself. An Ambu bag, or bag-valve-mask device, is also used for mechanical ventilation but is distinct from the barrier device. A defibrillator, on the other hand, is meant to restore a normal heart rhythm rather than assist with breathing. Understanding the specific function of the CPR barrier device clarifies why it is the appropriate choice for delivering artificial respiration.