NU-560 Total Exhaust Biological Safety Cabinet (BSC) may be used for work with non-flammable, non-explosive volatile chemicals and radionuclides by providing personnel, product, and environmental protection by exhausting 100% of contaminated air. LabGard® ES offers economical operation through the use of an ultra-high efficiency motor to maximize filter life and monolithic silicone-free construction for long product life all for an affordable price.