Acoustically absorptive anti-recirculation panel for one or more electronics racks of a data center

An acoustically absorptive panel is provided configured to reside above multiple electronics racks disposed in a row within a data center. The acoustically absorptive panel is configured to extend a height above the multiple electronics racks sufficient to at least partially block hot air recirculation from one or more air outlet sides of the multiple electronics racks to one or more air inlet sides of the electronics racks. The acoustically absorptive panel includes an acoustically absorptive material selected to attenuate noise, and in one embodiment, includes printed material on at least one side thereof related to one or more of the multiple electronics racks.