Automated external defibrillators that give instructions on how to use them have been installed at Edmonton International Airport and an Alberta mother wants to make sure people aren't afraid to use them.

Kim Ruether's 16-year-old son Brock died from cardiac arrest last year even though there was defibrillator at his volleyball practice.  It turned out that people were afraid to use the device.

Since then, Ruether and her husband have been educating people on how to use AEDs which use an automated voice to talk users through each step.

"Maybe someday a parent will come say thank you for raising this awareness and saving our boy or girl," Ruether said.

Ruether told her story on Thursday at Edmonton International Airport where 60 automatic external defibrillators (AEDs) have been installed throughout the terminals.

Click on the image to see more, including a demonstration of an AED, in a report from the CBC’s Lisa MacGregor.