First aid
Breathing – move air from the outside into the lungs.  "Giving breaths" is blowing air into someone else's mouth while holding their nose shut and watching their chest rise from the air you blow in.  This is taught as part of CPR.  A helper could get sick from "giving breaths" to someone who has a disease.  A CPR class can teach how to use a CPR mask to make this much safer.  A first aid kit may include a CPR mask or barrier device.