I do electrical in northern Alberta, I always carry a 45/70, bear bangers and spray are a joke if your life is in danger.
That’s OK though, each to their own.
Spray is better than nothing, I guess. I believe the range is supposed to be 10 feet? If a bear is charging, in the time it takes to go from that 10 feet to your face, you would have to be EXTREMELY lucky to make the blast of spray count!
When the bear attacks, if you don’t have a banger, instead of bear spray, it is better just to have a co-worker with you who runs slower than you! ;>}