A HVAC baffle is a device that is used to control the flow of air within a heating, ventilation, and air conditioning (HVAC) system. It is designed to direct the flow of air in a certain direction, allowing for better air circulation and improved energy efficiency. Baffles can be made from a variety of materials, including metal, plastic, and wood, and come in a variety of shapes and sizes. The purpose of a HVAC baffle is to direct air away from areas that are not in need of heating or cooling, such as attics and crawl spaces, and to focus the air towards areas that need it, such as living spaces. This helps to improve the efficiency of the HVAC system, as it is able to direct the air where it is needed most. Additionally, HVAC baffles can be used to reduce noise from the HVAC system, as they help to absorb and dampen sound waves. By using HVAC baffles, homeowners can enjoy improved energy efficiency and a quieter home.