No diving certification is required for this one-day course, and there is no age limit, making EFR an ideal qualification for anyone, whether a diver or not.
PADI Emergency First Response teaches the skills to perform CPR (Cardio-pulmonary resuscitation) and basic first-aid. It provides essential, fundamental knowledge and skills to ensure the correct approach and practice in dealing with many medical conditions, injuries and life-threatening situations.
While EFR does not directly include diving-specific knowledge and treatments, it (or another approved qualification in general first-aid) is a requirement for certification at Rescue Diver level. On the Rescue course, which is probably the most valuable on PADI’s non-professional program, that broad-based knowledge is supplemented by extensive information on diving accidents and injuries, together with detailed instruction on appropriate first-aid.