Keeping your auto-inflating life vests operational

The Alaska Office of Boating Safety received calls about auto-inflating life vests after a deadly canoeing accident on Finger Lake.
Authorities say the inflating life vests that two men were wearing didn’t inflate after their canoe tipped over.
Police say 30-year-old Gary Curtis made it ashore alive, but 67-year-old Edgar Curtis did not. His body was later recovered from the lake.
People called the boating safety office wanting to know more about how the vests work. KTVA 11 wanted to know,