The Rebreath Mouth-to-Mouth Shield is a CPR barrier device designed by Reliance Medical for emergency treatment and first aid situations. Made of clear material, this portable unit provides protection during resuscitation face shield use. The pack of 12 ensures that you have an ample supply on hand for any emergencies that may arise. With its simple design and reliable performance, this mouth-to-mouth shield is a crucial tool for anyone trained in CPR or first aid.