Mouth-to-mouth rescue breaths, also known as mouth-to-mouth resuscitation, are critical to life-saving techniques like cardiopulmonary resuscitation (CPR). This method provides oxygen to someone who is unable to breathe on their own. To know more: https://www.simplecpr.com/online-cpr-blog/what-indicates-the-need-for-mouth-to-mouth-rescue-breaths/