A remote-controlled, autonomous, or semi-autonomous vacuum cleaner for raised floor environments is especially configured to clean tight, hard-to-reach areas, such as the space between the floor and the raised panels of a raised access floor system and a control module for remotely operating the vacuum cleaner. The vacuum includes a body, a power source supported by the body, a vacuum module supported by the body, the vacuum module being configured to intake air and exhaust air, and a drive module supported by the body. The body includes an outer casing having channels formed therein, with the channels being configured to divide and channel exhaust flow and to direct exhaust flow in multiple directions.