Upsite Technologies’ hot-aisle containment keeps the hot exhaust air from servers separate from the cold supply air that feeds them. That stops the recirculation that causes hotspots and wastes cooling capacity. For full containment, AisleLok Chimneys duct hot-aisle exhaust directly to a ceiling plenum return or vent it vertically. Their frames attach magnetically to cabinets or hang from the building’s ceiling, and they come in flame-rated panels. For a lighter, re-deployable option, AisleLok Modular Containment uses rack-top baffles and bi-directional end-of-aisle doors that can be self-installed in minutes with no custom construction.

Better aisle separation lets operators get more out of the cooling they already have: they can support higher rack densities, raise setpoints, reduce fan and chiller energy, and recover stranded capacity without adding equipment. Because the systems are modular, they can grow or be reconfigured as the data hall changes. They also pair with Upsite’s KoldLok grommets and HotLok blanking panels to seal the remaining bypass airflow paths. Upsite was founded by Ken Brill, who also founded the Uptime Institute, and has focused on data center airflow management since 2001.