A flexible, form-shaped device that is placed over a patient's mouth to administer "mouth-to-mask" exhaled air from the user to the patient during cardiopulmonary resuscitation (CPR). The device is designed to replace "mouth-to-mouth" resuscitation therefore reducing the risk of cross-contamination; it is also used on manikins by students during CPR training. The device typically consists of the mask with a mouthpiece and a non-rebreathing valve and/or bacteria filter. Also referred to as a pocket face mask, it is typically used by emergency medical services (EMS) or as part of first aid kits. This is a single-use device.