Sudden cardiac arrest happens when the heart suddenly stops beating.
Experts said performing hands-only CPR until EMS arrives can double, even triple, the chance of survival.
The hands-on training is available at all 21 Louisville fire stations, and it's open to everyone.
Each JCPS school and building will have at least one AED device installed, depending on the size of the building.
Reaching Every Heart CPR Foundation has taught more than 20 classes and trained over 200 people.
On June 20, a Tuesday afternoon, Carson Dickey went into cardiac arrest on the football field behind Old Kentucky Home Middle School.
Fifth Third Bank Kentucky hopes to have another free training event this spring.
Damar Hamlin collapsed on the field during the first quarter of the nationally televised game against the Cincinnati Bengals.
Health officials encourage people to take training classes on AED and CPR because it's a skill that could become life-saving in a moments notice.
The lessons are part of Ramsey's Explore Healthcare program.