I want to comfort my daughter, who is afraid of smoke alarms.
It's good that you want to comfort her. Why is she afraid of smoke alarms?
She is afraid of being in a fire, also because they're loud.
It's good that you care for your daughter. Just remember that it's also OK to be scared, especially about alarms regarding dangerous situations.
It's just going to help her in time of need. I don't want her to be scared.
It's great that you are a caring and nurturing parent. Ensuring that your daughter is comforted will ease her mind.