Aisle containment in the data center requires that cabinets are aligned in a hot aisle/cold aisle layout. Containment panels or strips create a partition to isolate either the server supply air (cold aisle containment) or the exhaust air (hot aisle containment). Preventing the supply and exhaust air from mixing significantly increases the capacity and cooling efficiency of the cooling infrastructure.Each site will be different due to the site conditions, cooling infrastructure, rack density and other factors. If properly installed you can expect 20-50% reduction in cooling costs. Efficiency is maximized if the cooling systems with variable speed fans and there is a good return air path.