VAV controllers, short for variable air volume controllers, are an essential part of any business’s effort to preserve energy and optimize environmental performance. These electronic devices manage the amount of air that reaches each space in a building in order to ensure comfort levels remain consistent, while also controlling operational costs. As the need for modernizing existing facilities continues to grow, so too does our understanding of how VAV systems can be used to achieve this goal—from retrofitting existing structures to customizing controllers for particular conditions. In this article, we’ll explore what VAV controllers are, their importance to business operations, and why they will play an increasingly pivotal role in the future of building management.