(i) Before giving artificial respiration by mouth to mouth way, victims mouth is opened and cleaned thoroughly. This removes debris, impurities and secretions from patient’s mouth and prevents blocking of airway.
(ii) Then first aider should pinch the nose of the patient tightly by one hand and by tightly sealing mouth on patient’s opened mouth breath out entire air forcefully into mouth of patient.
(iii) Expansion of chest of patient by 2-5 cm occurs, confirming air entering into the lungs of victim. This should be observed.
(iv) Such artificial mouth to mouth respirations should be given 12 times per minute.