Removing an Air Vent Cover on the Floor
Generally, the reasons to remove the vent cover, other than for some type of repair to the duct underneath the floor, are to clean, repair or replace the cover. Because air is flowing through and around the vent cover at all times, it can't help but catch some of the dust and debris particles within the passing air. Cleaning the cover helps improve the air quality inside the room. At least once a month, remove the floor vent cover and clean both sides of it, using a duster and regular household cleanser. Some vent covers also have a filter underneath them, and you need to remove the vent cover in order to replace the dirty filter.