Why is it important that you form a tight seal around the victims mouth when you give a person breaths of air?

Forming a tight seal around the victim's mouth is crucial to ensure that the air you provide during rescue breaths is delivered effectively into their lungs. A proper seal minimizes the risk of air escaping, which can reduce the effectiveness of ventilation and prevent adequate oxygenation. Additionally, a good seal helps to prevent any contamination or foreign material from entering the victim's airway. This technique is essential for maximizing the chances of survival in a cardiac arrest or respiratory emergency.