This Baker SterilGard II SG400 laminar flow hood is a class II, type A (when the unit is vented to the outside, the classification is class II, type B3).       The Baker SterilGard offers a 100% total exhaust and incorporates HEPA exhaust filters so there's no need for any external exhaust ducts. Ergonomic design gives end users a comfortable workspace without putting any strain on their body. Instrument features telescoping legs for adjustable height and UV lamps for germicidal use.