I just learned this too. It was never anything I thought about, but some dogs can be trained to hear for situations that a deaf person can’t hear. I can’t explain why I didn’t know or think about this, but it’s kind of awesome to me.

They can be trained to notify their person about different alarms and situations that their person might not hear. A good contrast would be a seeing-eye dog for blind people. Dogs are the greatest

Paws With A Cause seems like a good organization to use