Do you know how to do chest-compression-only CPR (continuous chest compressions)

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This is only for people who are 8 years old and older, not for babies or small children. It is not for people who are victims of drowning or drug overdose, or for those whose cardiac arrests are not witnessed. They need the breaths of mouth to mouth breathing because they have lost the necessary supply of oxygen in their bodies. For them, do the standard CPR of 30 compressions to two breaths. It is for when you witness a person who suddenly collapses to the ground, unconscious and not breathing normally. First you tap on the chest hard to see if the person responds. If the person does not respond, have someone else call for an ambulance if anyone else is around, and start doing the CPR. If no one else is around, call for an ambulance first and then start doing the CPR. You put one hand in the center of the chest, and the other hand on top, and start pushing up and down on the chest hard and fast, at 100 compressions a minute, until a defibrillator arrives, an ambulance arrives, or someone else takes over the compressions. Mouth to mouth is not needed for the first 10 minutes because there is enough oxygen in the body to keep the person alive. What the person really needs is for that oxygen to be circulated. Stopping even for a little while, for any reason, stops the circulation of that oxygen to the brain and other vital organs. This form of CPR is now recognized to be as effective, if not more so, than standard CPR, and is more likely to save lives because it is easier to remember how to do it, and it does not involve mouth contact or contact with bodily fluids.