First aid training courses vary in cost depending on what’s included, from basic first aid to cardiopulmonary resuscitation (CPR) to pediatric CPR, as well as the length of the class and who’s offering them. The national average cost for an in-person CPR and first aid class is $50-$75 per person. An informational CPR training costs less than one that leads to first aid training certification. For example, a two-hour course that trains you to administer CPR and use an automated external defibrillator (AED) costs an average of $35 per person; an employer may book the same class for a group of at least eight students for an average of $280. A four-hour CRP and AED training costs an average of $45 per person and $360 for at least eight people. Some companies offer add-on training to their CPR and AED classes, such as $5 per student to learn infant CPR, $15 each for oxygen administration training, and $15 each for bloodborne pathogen training. A first aid certificate is valid for two years.