A building for a data center (or server farm) includes a stack structure that interfaces with an environment and one or more housings coupled to a floor and the stack structure. Each of the housings includes one or more racks with a plurality of servers and each of the servers includes a computer fan capable of varying speed or reversing direction. The building also includes one or more filters between the one or more housings and the environment and one or more walls operable to be between the one or more filters and the environment.