This Baker SG403M SterilGARD III Advance Class II Biological Safety Cabinet is in used condition, has been tested and is guaranteed to be 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.