30 compression and 2 ventilation
Adults over the age of 18+ - 12 to 20 breaths per minute
For 1-person CPR the compression-ventilation ratio for children (and adults and infants) are 30 compressions to 2 breaths.
The ventilation rate of industrial ventilation should exceed the supply rate by 10%. There is a detailed description of these rates in the Lab Ventilation ACH Rates Standards and Guidelines manual.
For every 30 compressions, you give 2 rescue breaths.
30:2
30:2
15:2
30 compressions to 2 breaths.
The compression and ventilation ratio for a two-person rescue CPR is 15 compression and 2 breaths.
It will induce a respiratory alkalosis, as carbon dioxide is washed out of the blood by the increased ventilation rate.
Pulmonary Ventilation(dmcubed/min) = Tidal Volume (dmcubed) X Ventilation Rate (min)