Out of curiosity do you still teach giving breaths in cpr? 30 and 2? One way mask if available?
For adults yes.
Infants/small children 15:2
One way mask if available. But DO NOT delay chest compressions looking or waiting for a mask. The oxygen still in the bloodstream is more important.
If you are alone do 2 mins of chest compressions BEFORE calling for help. sounds crazy but those initial compressions are that important.
If you’re truly concerned I highly recommend you take a refresher class. The new information is great, the practice is even more important.
Edit: as I said before, there are currently 2 classes.
One for Health Care providers
The other is for laypersons.
The layperson class is hands only and rescue breathing is based on comfort level of rescuers and available equipment.