We have baseboard heating in our house so it can get pretty dry in our rooms from time to time, especially if we have them turned up in the rooms that connect. I was often finding my nose was stuffy in the mornings so I was gifted this humidifier from a friend who no longer needed it. The sound is not bothersome to us as we like noise in the background when we sleep and it gives our room, which has a walk in closet, a decent amount of moisture. We haven't had a problem with mold and to clean it we mix white vinegar with some water and mix it around which makes for easy clean up and refresher. I would recommend this humidifier to anyone looking, we've not been disappointed with it and it's holding up nicely.