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Hands-only CPR helps encourage lay rescuers who may be reluctant to help, to get involved.  Research shows that not wanting to give the breaths is as a reason why people do not perform CPR. With this new technique, blood is circulated around the body, which oxygenates the body's tissues and organs without having to perform rescue breaths.

The rescuer delivers 5 to 6 cm deep compressions at a rate of 100 to 120 compressions per minute without the need to deliver rescue breaths. Hands-only CPR eliminates the fear of transmitting disease by removing the mouth-to-mouth component of CPR.

It is still advised that you hand over to a second rescuer every two minutes to ensure that the best possible compressions are given before the AED or EMS arrive.