A vent balloon for use over an air vent including an inflatable body operatively attached to a base on a proximal side, and a removable adhesive attached to a distal side of the base for attaching to an air vent. A method of using a vent balloon by removably adhering an inflatable body of the vent balloon through a base to an air vent, flowing air through the inflatable body, and inflating the inflatable body. A vent balloon for dispersing scent in a room, including an inflatable body operatively attached to a base on a proximal side, a removable adhesive attached to a distal side of the base for attaching to an air vent, and at least one scent mechanism operatively attached to the vent balloon for dispersing scent in the room. A method of dispersing scent in a room using the vent balloon.