To minimize potential injuries, only those trained in CPR should perform rescue breathing. If you haven’t been trained, perform chest compressions until medical help arrives.
If you are trained in CPR, tilt the person’s head back and lift the chin to open up the airway.
Pinch the person’s nose closed and cover their mouth with yours, creating an airtight seal.
Give two one-second breaths and watch for the person’s chest to rise.
Continue alternating between compressions and breaths — 30 compressions and two breaths — until help arrives or there are signs of movement.