Vent covers are protective grilles or plates that fit over air vents in homes and buildings. They help control the flow of air from heating, ventilation, and air conditioning systems, ensuring that air is distributed evenly throughout a space. Vent covers can be adjustable or fixed, allowing users to direct airflow as needed. These covers come in various materials, such as plastic, metal, or wood, and are available in different styles and sizes to match interior decor. Properly installed vent covers can improve energy efficiency and maintain indoor air quality by preventing dust and debris from entering the ventilation system.