Learning CPR is one of the best thing to learn nowadays considering that heart attack may occur anytime. This is actually the process of giving air towards the lungs and providing external compressions to a patient chest who is not breathing and and has no pulse. It has been proven to have increase the survival of many person going into cardiac arrest due to heart attack, drowning, electrocution, and many other conditions. This lifesaving techniques are thought by different training centers for emergency care courses worldwide. By blowing air towards the patient using mouth to mouth or with a barrier like face shield, pocket mask or with Bag Valve Mask, the victims brain will be supplied with oxygen and brain damage can be prevented prior to the arrival at the hospital. The external compression of the chest will create the circulation of blood carrying oxygen towards the body tissues. By doing this procedure, the victims of cardiac arrest has greater chance of survival upon arrival at the hospital.