Add Yahoo as a preferred source to see more of our stories on Google. Person opening white ceiling vent cover - Scott Habermann/Shutterstock Have you been avoiding the growing layer of dust that's ...

White popcorn ceiling with dirty air vent and ceiling light with glass globe. - knelson20/Shutterstock Popcorn ceilings, the nubby bane of many homeowners, became popular after World War II. They were ...