If two people are present and a bag-mask device is available, the second rescuer is positioned at the victim’s head while the other rescuer performs high-quality chest compressions. Give 30 high-quality chest compressions.

1. Deliver 30 high-quality chest compressions while counting out loud (Figure 6a).
2. The second rescuer holds the bag-mask with one hand using the thumb and index finger in the shape of a “C” on one side of the mask to form a seal between the mask and the face, while the other fingers open the airway by lifting the person’s lower jaw (Figure 6b).
3. The second rescuer gives two breaths over one second each as you watch the person’s chest rise (Figure 6c).
4. Practice using the bag-valve-mask; it is essential to forming a tight seal and delivering effective breaths.