This Veco BH-C12 4 Foot Laminar Flow Hood is in used condition, has been tested and is guaranteed to be fully functional. This unit came from a large pharmaceutical company that had surplus equipment and was in use prior to removal. Unit shows some minor aesthetic signs of normal use. We urge customers to view all photos as they show overall condition, included accessories and functionality. We will be happy to provide additional information as well as photos so please feel free to contact us with any questions. Interior Workspace: 49.5 x 24 x 22.5" (WxDxH) For additional information please visit link to brochure below (en espanol): http://www.veco.com.mx/pdf/equipos/campana_BHC12.pdf If link is no longer available please contact us for copy of PDF