Which type of mask can provide effective rescue breaths during CPR?

A pocket mask with a one-way valve is effective for providing rescue breaths during CPR because it is specifically designed for this purpose. The one-way valve allows the rescuer to deliver breaths into the victim's airway while preventing any exhaled air from coming back out. This feature reduces the risk of cross-contamination between the rescuer and the victim, making it a safer option in emergency situations. The mask also creates a seal around the victim's mouth and nose, which helps to ensure that the air delivered goes directly into the lungs, increasing the efficacy of the breaths given.

In contrast, a standard surgical mask is not designed for providing rescue breaths; its purpose is primarily to protect the wearer from inhaling pathogens or to contain droplets, not to facilitate ventilation. A face shield without a valve also does not provide the necessary protection against backflow of exhaled air, which could expose the rescuer to potential infectious agents. Similarly, while a full-face respirator offers a high level of respiratory protection, it is not practical or necessary for administering CPR in most situations. The pocket mask stands out for its combination of effectiveness and safety in delivering rescue breaths.