UniFlow AireStream Fume Hoods are constructed entirely of chemical resistant, flame retardant, non-metallic composite resin materials, NO RUST & features an exclusive “Unitized” construction that does not require screws, bolts, rivets, or metallic hardware to assemble. The fume chamber is molded one piece seamless with all corners coved for easy cleaning & light reflectivity. This series of fume hoods is UL 1805 certified and is offered in 48”, 60”, 72” and 96” widths in either constant air volume or restricted bypass models. The AireStream Fume Hood is a high performance fume hood that maximizes user protection and energy savings. Hood is shipped completely assembled and can include a wide selection of accessories to meet your needs. Work surfaces in a variety of materials and a choice of base cabinets including acid or flammable storage are optional as required.