Described are methods, systems, and apparatus, including computer program products, relating to an air module and control thereof. An air module can include a controller, an air intake module configured to receive first air from a first air source and to receive second air from a second air source, a first cooling module in fluid communication with the air intake module, and a second cooling module in fluid communication with the first cooling module. The controller can be configured to cause the intake module to mix the first air and the second air to form intake air, and selectively cool the intake air to form supply air by at least one of causing the first cooling module to selectively cool the intake air, and causing the second cooling module to selectively cool the intake.