UniFlow Superstructure constructed of either PVC or 316 stainless steel features exclusive unitized dual wall construction for superior chemical resistance, strength,and durability. Rear drain trough is integral to superstructure. Fume Chamber type 316 stainless steel fume or PVC fume chamber and baffle. Dedicated wash down with integral piping spray nozzles & remote control on right column.    Access Panel removable to access ducting connections, wash down system, and electrical services from a single point electrical box,115V/60Hz AC operation. Energy efficient explosion proof light fixture, with light switch on left column,all factory installed.    PVC or Stainless Steel Work Surfaces integral PVC or 316 stainless steel work surface and drainage trough.    Full 30” Viewing Height with 28.5” sash opening height for ease of access and viewing tall apparatus setup. Sash is 3/16 thick tempered safety glass, vertical moving with single point counterbalance, contoured sash handle for efficient air flow and ease of movement.    Air Flow Monitor continuously monitors face velocity airflow, analog or digital available. Meets ANSI and OSHA requirements. Optional equipment.