What is the name of the barrier device with one-way valves used when performing ventilations?

The device referred to is commonly known as a CPR mask, which is specifically designed to facilitate effective ventilations during CPR. This mask features a one-way valve that allows exhaled air from the rescuer to enter the patient while preventing exhaled air from the patient from returning to the rescuer. This ensures a safer method of delivering breaths without the risk of cross-contamination or exposure to bodily fluids, which is vital in emergency situations.

In the context of emergency response and CPR procedures, the CPR mask is essential for providing proper respiratory support to a victim in need. It maximizes the effectiveness of ventilations while protecting both the rescuer and the patient. Other devices, such as oxygen masks and face shields, serve different functions, like delivering oxygen or providing a barrier during mouth-to-mouth contact, but do not have the same specific design features aimed at ensuring safety and efficiency during ventilations as the CPR mask does.