Actually it is very recommended to apply the floor vents in almost all areas in the house. The floor vents are useful to serve as the ventilation under the floor. Through the existence of floor vents, the air as the cause of the moisture in the ground will be expelled. But when there is no floor vents, it will make the poor ventilation and as the result, it will create the bad smell. The moisture under the floor can also invite termites, and what is gonna happen next? Of course, termites will damage the floor, especially the wood floor covering.