Air vent covers are metal or wooden grates that cover ventilation holes in ceilings, floors, and walls. Vent covers prevent air from being blocked as it is circulated through a building. Most vent covers help control how much air is released into a room and can direct the flow of air in a certain direction. Some types of vent covers are solid mats that cover the grates and prevent air from emerging through the vent.
Heating, ventilation, and air conditioning (HVAC) systems are necessary to refresh the air inside rooms. This helps balance temperatures throughout the entire building, and maintains air quality in various rooms. Most buildings are constructed with ducts which run throughout the entire structure. Vents release airflow from the ducts and permit air to be moved from the rooms to improve circulation.
Air vent covers are available in a large variety of designs, sizes, and types. Usually, wooden grates provide a decorative choice to blend in with interior designs without cutting off the flow of air. Metal grates, on the other hand, carry their own design appeal, coming in a variety of thicknesses and materials, including steel, brass, copper, nickel, or others. Most often, metal covers can be manufactured with a shutter inside the vent. The vent can be closed or opened to help regulate the amount of hot or cold air released.
Most air vent covers help to spread hot or cool air as evenly as possible through a building. If a shutter is not included, a magnetic air vent cover can be used on metal grates. Magnetic air vent covers are mats that can cover most types of flat metal grates, whether located in the ceiling, walls, or floor. The magnet keeps the mat from slipping, resists the flow of air pushing against it, and maintains the flat surface of the air vent beneath without requiring additional attachments. The mats are thin and flexible, permitting them to be cut into various sizes and shapes.
Buildings with windows that cannot open for natural ventilation make use of ventilation ducts as the primary source of temperature control and air circulation. Air filters are sometimes integrated into HVAC systems to help remove particles of dust, trap moisture, or capture other pollutants from the air. Filters can also be placed between the vent and the air vent cover. They are easy to replace and clean, as are the air vent covers, which can be cleaned by a cloth.