When artificial respiration is performed, the bra needs to be removed or unclasped in a timely manner to avoid affecting the strength of the compressions, which in turn affects the life-saving effect. Artificial respiration is a part of cardiopulmonary resuscitation, cardiopulmonary resuscitation, the first choice of the patient for chest compressions, after 30 times of pressure to open the airway and then need to carry out 2 times of artificial respiration. Chest compression site for both nipples in the middle of the lower third of the junction of the sternum, compression before the need to lift the clothing, the lady’s bra should be removed or unlocked, the bra’s binding force is very large, to a certain extent, increase cardiac pressure, but also to limit the undulation of the thorax. Especially the bra with steel ring, may press the steel ring into the patient’s skin as well as inside the lungs, leading to pneumothorax, bleeding, hemothorax and other serious harm. At the same time, pay attention to the rhythm of resuscitation, avoid too fast or too slow, or affect the life-saving treatment. In short, artificial respiration need to remove or unlock the bra, if the patient in public places, need to cover the chest with a towel or thin clothing, in order to save the patient in a timely manner.