A proven and easy to use barrier with a one-way valve that prevents direct mouth-to-mouth contact and provides the rescuer with the peace of mind, knowing that he or she is safe from the possibility of cross-contamination. Suitable for both adults and children, elastic ear bands fit over victim's ears to keep mask in place. One-way valve prevents contamination of outer surface of mask, allows mouth-to-mouth and mouth-to-nose use, transparent-allows victim's response to be seen. Latex Free.